chemistry and measurement lab 1 report sheet 0300 (42. Majcen, P. Measuring Length 1. measurement of plasma A patient report shows serum rhubarb results on two samples collected a week is why analyte Chemistry. report the data “as is. Course: Principles The form that is usually used in chemistry is known as the CGS. 3. 2. Complete the lab report form and save the completed PDF with your last name and lab number (for example: jones_lab1. Convert 25 cm to mm. 7 g. 98 g+10. FULL REPORT GUIDE. The analyte substance must strongly absorb light of the wavelength employed for measurement. Introduction. The tests in a clinical chemistry laboratory measure concentrations of biologically important ions (salts and minerals), small organic molecules and large macromolecules (primarily proteins). system LABORATORY REPORT DATE :  19 Jan 2018 Writing a lab report is an essential part of completing the laboratory exercises This is especially important e. When finished, return the ruler and sheet to the front bench. Trial Sample 1 Volume Calculate the Density. 5) Data and Calculations. 1 Section 1. Experiment 1F-1. View Lab Report - Chemistry-Remote-Lab 1 - Mearument lab 1. 000 g/ml. Step 1: Find the average 10. By: Haley Gorman. What are the units of mass, length, and temperature in the International System of Units (Table Chemistry lab reports Academic Tip Sheet CRICOS IPC 00279B 01/08 This academic tip sheet: • outlines the guidelines for writing a laboratory report; and • looks at what you should write in each section. Experiment 1: Measurement and Precision Report: In addition to the standard elements of a well written lab report described in the introduction to this manual, your report must include: 1) An appropriate title 2) The objective of the experiment 3) Your group’s data in an appropriate format 4) A graph of your group’s data Feb 03, 2020 · Lab reports are an essential part of all laboratory courses and usually a significant part of your grade. 1 What digits in the measurements for the line by other students are the sameB as yours and which are different? Q. They may be collected at the beginning of the laboratory period. Cu and HCl A. Cu and HNO3 4. Texas A&M Chemistry. These measurements will encompass mastering the metric ruler, gram scale, and the graduated cylinder, and thermometer. 2) Abstract. Data [Templates for the report sheets and tables in the lab manual are on Carmen and can be accessed via the links there. They may be collected at the beginning of the laboratory period. Be aware that biology and chemistry lab reports will have slight differences, depending on your instructor’s preferences. 0 x 10 3 mL to L. Any lab report should allow the person reading it to be able to reproduce the exact procedure (and result, hopefully) carried out in the lab. 8) Answers to all Questions. • In this class, you will be performing a number of experiments to measure the concentrations of various analytes and performing statistical U si ng th er ul dab 1, p cf w o r eac hstd i ng k by w um ( C M and Vernier Calipers). a) Tear a sheet of notebook paper into 8 equal size rectangles . Chemistry 101 Page 5 of 191 Syllabus Activity Report Points Unknown Points Tour of the laboratory, Laboratory Procedures Proper Use of Laboratory Notebook Safety Video ­­ ­­ Experiment #1: The Balance 10 ­­ Periodic Table of the Elements (Video) Check In ­­ ­­ Experiment #2: Density; Part 1 and Part 2 5 5 19 MEASUREMENT UNCERTAINTY 19. 3 Section 1. Part A: Making Observations in the Laboratory Observations – describe what happened Did a chemical reaction occur? 1. docx from CHEM 121 at City Colleges of Chicago, Wilbur Wright College. Name: Lab #1 – Density. Many substances simply do not absorb light (or absorb only weakly) at any convenient measurement wavelength. Example Problem: Finding Standard Deviation A student measured the mass of a weight three times and recorded 10. 9 “The Liter”, a liter is also 1,000 cm 3. TAs generally don't want to  In chemical measurements we try to eliminate errors. Measure the Volume. An example of the relative errors for the pipet measurements: Assuming the experimental value was determined to be 24. 33 psi (psi stands for "pounds per square inch" and is a unit of pressure, like air in a tire). Please type your answers. In either case, the cost to the responsible employee is their job and all possible future employment. Part I: Answer the following questions while in the Phase 1 lab environment. I. 000 L of water at 4 0C is 1. 1 mL = 1 cm 3 Experiment 1 21 Measurement and Uncertainty In this part of the lab, you will gather some data from your lab mates, to find out the average (mean) width and length of 10 first year physics students’ hands and its uncertainty. The precision of measurements for Balance #1 is better (i. , made with a  To become acquainted with metric measurements, the use of common lab apparatus, and the report sheet, using the correct number of significant figures. The answers to the questions are available on separate worksheets so you can fill them out and then check your work. Measurements can be represented in either decimal or scientific notation. 1 mL from the stated volume. Specimen Volume (cm3) Mass (grams) Density (gm/cm3) Liquids Density (g/cm3) Mercury 13. Their respective SI base units are the kilogram (kg) , the meter (m) , the second (s) , and the kelvin (K) . sheet and throughout the lab report. 11 g+9. Likewise if a student uses a metric scale to determine that he weighs 67. 3. The units generally used for solids and liquids are g/mL, for gases g/L. ) Section: ______ Date: Part A – Density of Water. The last lap in our “race” is to write a laboratory report. measurements of the mass of water contained by each of the three flasks. See the following sample calculation. Feb 21, 2017 - Unit conversion worksheets for the SI system, or metric system. 3 Scientific Measurements—Four basic physical quantities of measurement are introduced in this section: mass, length, time, and temperature. 25 hours to seconds. It will be used in the last part of the lab exercise. Every measurement has an uncertainty, or built-in error. We’re serving students remotely while our physical locations are temporarily closed to the public. The range of measurements for Balance #1 is from 26. 1. Introduction. Zn and HCl 3. Write legibly or (even better) type, and use proper grammar. 1. Convert 1. Because this drag is due primarily to a pressure difference, measurement of the pressure distribution about the cylinder allows for finding the drag force experimentally. For example, let's assume a biologist is studying the effect of temperature on plant growth. Lab Report. Measurement and Significant Figures Report Sheet Date: 11 February 2016  CHEMISTRY LAB #1. 1. 0345 0. 7. 4) gives approximate equivalents for some of the units used in chemistry. “ Enter all the density data into the spreadsheet program that will be Chemistry Lab 1 Measurements. Learn about chemical reactions, elements, and the periodic table with these resources for students and teachers. 0. Calculate the volume of the polystyrene sphere in cm3 from the measured diameter (V = 4/3˜r2) 0. Record your actual value in the data sheet. : View Chemistry and measuremnt LAB REPORT (1) from CHM 101 at Northern Virginia Community College. I. The cubic decimeter is commonly referred to as a liter (1 dm3 = I L = 10−3 m3) and the cubic centimeter as a milliliter (1 cm3 = I mL = 10−6 m3). First-aid kits are The stockroom has a catalogue of MSDS (Material Safety Data Sheet) sheets percentage of various land types reporting greater than 1 mg/L of nitr Lab Schedule: Chem 1A Lecture and Lab Schedule F18. 2B CHEM 1405 PowerPoints From the publisher of Corwin's "Introductory Chemistry: Concepts & Connections. View Lab Report - Lab#1 from CHEM 1411 at Dallas County Community College. It is important that the answers are not rounded at each step, only at the very end, to avoid rounding View Lab Report - Lab#1 from CHEM 1411 at Dallas County Community College. measurements form the basis of scientific inquiry, they are deserving of in-depth analysis in lab. FV 12-5-14. In laboratory experiments it is difficult to measure out chemicals in the exact ratio necessary for the chemical reaction. Table 1. 3 pages. " CHEM 1305 and 1405 cover Chapters 1-13 of the 6th edition of the textbook, and Chapters 1-12 of the 7th edition. Set up a spot plate. Ramsey, Media Resources, Eastern Kentucky University. Calculate the corresponding volumes of water contained by each of the flasks, and calculate the mean and sample deviation for each flask. Equation 1 was used to calculate this percentage difference. 3398 24. There are numerous laboratory tests that can be done. - Leave one line of blank space between each response. If you are having problems measuring the test tube, get out a sheet of note book paper. Scientists primarily use the SI (International System) or metric systems. For instance, "Armada is a great place to live. The good news: Your Chem I class doesn’t have to be torture. Mass of a dry 25-mL graduated cylinder = 3. mmol/L, dimension one) e. 7) Discussion. Print/ Section 1: Cooperative Chemi This page contains answers to the measurements portion of the Common Lab results for measuring Box 1 in the Common Lab Measurements lab in Chem 10. 1. Cu and HNO3 4. 075 m to cm. Table I. 2 MASS, VOLUME, AND DENSITY MEASUREMENTS. The three variables you will measure most are mass, volume and temperature. 5 0. 01m or 1 100 of a meter, so 1m 100cm just like 1 dollar 100 cents (since one cent is equal to 100 1 of a dollar). The Hall Effect is the creation of a voltage difference an electric conductor placed perpendicular to the direction of the magnetic field and electric current as shown below. Chemistry 101 2-MEASUREMENT: VOLUME, MASS AND DENSITY Section_____ Name_____ Questions 1. b) Without a ruler, draw a free hand line that you estimate to be 5. INTRODUCTION Two of the most frequently made measurements in the chemical laboratory are the determination of mass and volume. D. The following format is recommended and should be adhered to closely unless your instructor decides otherwise. Divide the standard deviation by the mean and multiply by 100% to determine if your results agree within 0. , Lehman Students must have There are several dozen prefixes used but these above are most commonly used in Science measurements. Zeros between nonzero numbers are significant For example: 1 004 = 4 significant figures 3. View Lab Report - Chemistry-Remote-Lab 1 - Mearument lab 1. Carefully mark a length exactly 40. Organic Chemistry: Techniques and Transformations 3 Follow your instructor’s guidelines for a laboratory report and be certain that your report includes (1) the number or letter of your unknown compound, (2) your measured melting point range for your unknown compound, (3) the compound names and melting Experiment 1 (Lab period 1) Spectrophotometry: Absorption spectra and the use of light absorption to measure concentration Spectrophotometry is a procedure that is frequently utilized in biological laboratories. Density of some liquid substances. Measure the length and width of the rectangle, and the diameter of the circle. " CHEM 1305 and 1405 cover Chapters 1-13 of the 6th edition of the textbook, and Chapters 1-12 of the 7th edition. Report Sheet (10 pts. 1. ,. You must show all your work, including units, and report final results with the correct [1] Significant Figures. 11. Write down your unknown number. Examination of the effect of the addition of a strong acid/base to Buffered or Water Solutions: In this part of the exercise the new pH of the buffers, solutions 1 and 2 will be measured after 1. 8 Each day, before you leave your lab bench, clean off the bench surface. 0001 gram accurately and precisely. Measurements and Conversion: Data Sheet Name _____ Report Page 1 of 3 Include the proper units for all measurements and show all your work for any calculations. Chemistry PowerPoints This page contains links to PowerPoint presentations that may be used by any teacher or student who can benefit from this resource. 1 Volume of a liquid (Include units for every measurement) 1 Cylinder2 3 Volume (mL) Preparation For Chemistry Lab Measurement Lab Instructor:_____ PREPARATION FOR CHEMISTRY LAB: MEASUREMENT (Part I) Pre-lab questions need to be completed prior to your coming to lab. 3. Introduction: This experiment was designed to provide experience in preparing compounds using a two-step synthetic scheme. Organisms and Their Environment - Open Response Question 1 Organisms and Their Environment - Open Response Question 2 Contour Maps - Open Response Question 1 NJASK - 8 Competition Units, Measurements, and Conversions Units, Lab Equipment, & Measurements - Self-Assessment Sheet Identifying the Appropriate Unit Classifying Units Chemistry. Got questions about EvCC? Text us at 425-382-7533. Ver. Significant figures are an indication of accuracy and precision within a measurement. Chemical Safety in the Laboratory - Regulations. , better agreement between measurements), but is it more accura If the true mass of the te? General Chemistry I (FC, 09 - 10) Lab # 1: The Densities of Solids and Liquids Revised 8/19/2009 1 The density of a material may be defined as mass per unit volume. Measure the length of a 13 x 100 mm test tube with each of the following: (a) METRIC RULER A, and (b) METRIC RULER B. This is a Station Lab. Deliverables: Total 30 Points (12 points) Create a data sheet showing all the recorded volume and weights with a total of 3 sheet shots (1 for each metal from being in the lab with the vials, scales etc…) Lab #1 – Density Report Sheet (10 pts. (2) To introduce the relationship of the metric units to English units. Write your answers to the pre-lab questions on a separate sheet of paper. D. Solution for Chemistry 310 Lab 3 – Measurements Name Report Sheet Part 1: Obtain mass of a liquid in a beaker using weighing by difference technique Trial 1… Lab 8: Gen Chem I: Aspirin Synthesis Lab 9: Gen Chem I: Solubility Experiment - lab report Chemistry- Chapter Summaries HW 5 - Assignment 5 for manufacturing processes Lab 7 Recycling Aluminum Cans 1 - work and energy Lab 1: Gen Chem I: Seperation Lab 3: Gen Chem I: Best metal Discussion 9 : Identification&Role Of Witnesses : CJ 306 Lab 1 sugar water density Lab 3 Energy Changes in Chemical Next, 1 ml of NaCl solution was taken by using pipette to the 25 ml volumetric flask. Length Measurement 1. Late Reports 2. Purpose of Experiment: To explore how to find the density of metals by the displacement method. 1184 8. 0 cm wide, so the first significant digit is 1. , the chemistry or Meeting Experiment. Apr 16, 2015 · Chem Lab Report (1) 1. March 11th, 2013. 8, or 1. DOC 1 of 8 Name: Aamenah Cheema Date: Jan, 01-2021 to Feb, 07-2021 Email: [email protected] or [email protected] Laboratory Instructor: Dr. Page 13 of 14 Bellevue College | CHEM& 161 2) (a) Provide a measurement for each of Report Sheets: Density Lab Instructions: It will help your ins Chapter 1. All nonzero numbers (1-9) are ALWAYS significant. 75 m. Since the first use of glass electrode to detect pH, new techniques and methods have broaden the scope of pH detection. The difference in pressure multiplied by the projected frontal area 1 Fluid Mechanics II Lab Sheet of the cylinder gives the drag force due to pressure (also known as form drag). Section 1: You will be testing 4 known solutions for pH levels using a standard wide-range N. My measured mass was 46. 9. Q. If you have trouble with any specific types of problems, try looking at a worked example problem to review the concepts and see how to proceed. 02 Water 1. Section 2: Laboratory Equipment and Functions!4 of !5 ! Answer the following questions on a separate sheet of paper. Writing A Laboratory Report Laboratory Work Grading Policies A-7 Late Reports & Make-Up Policy A-8 1. I have found that it is much easier to incorporate small, topical presentations into a course. 8. Writing Lab Experiment 1-Mass, vol, graphing Graph for Expt 1 Chem 1A695 · Experiment 2- Metric Measurement · Experiment Exp 3 report sheet – Unknown Liquid. 4 Assessment Single 1 1 1 1 1 Block 0. Transfer the measured length and width values from Table 1. Guidelines for writing lab reports Laboratory reports are a written version of the experiments that you performed in the lab. - If handwritten, print your responses neatly. Writing a Chemistry Lab Report. Anal. org) Improper utilization of lab equipment can lead to serious injury. 12. pdf from CHEM 1a at California State University, Bakersfield. C. S. 43 ± 0. ) 15. Page 2. Convert 1. 1. aoac. Lab 1 : Orientation Click on the link below to open the "Lab 1 Report" form. Introduction. metric stick the report sheet. We say that the measurement is reported to three significant figures. Chemistry 101 Exercise 4: Using VSEPR to predict molecular shapes, polarity and solubility. Obtain a 50 ml beaker from the side bench. This difference indicates the accuracy of the measurement. ) 14. Mass of Empty 3. Sep 01, 2020 · The mass of 1. Measuring the NaCl volume can be done by the equations: M 1 V 1=M 2 V 2 The result of NaCl volume is 5 ml. Procedure I: Estimating Lengths . report the average experimental value with its relative uncertainty. 2. 23 1. Note: Chemical formulations can vary. Project - Atomic Theory Timeline - Evaluation Sheet. Notify your TA if your pipet volume differs by more that 0. 0 cm long on the 45 cm sheet you have and mark it off wit h a pencil. For example: 1 234 = 4 significant figures 2. Experiment 1F-1 MEASUREMENTS IN THE CHEMISTRY LABORATORY I DATA SHEET: Report all values with units and the proper number of significant figures. 00 cm long on one of Mar 30, 2012 · Using laboratory values can be a key piece of assessment to determine what is occurring within the body of a patient. Preface i. ) Jan 02, 2002 · II. 956845712581 cm. Viewing the Pre-laboratory Presentations. The most common tests include chemistry panels, hematology (such as the complete blood count), and blood gases. Lay the test tube on the paper and using a pen or pencil, draw an outline of the test tube. When measuring something in lab, include all known numbers and one estimated number. 1 CD Experiment 1 Introduction to the Analytical Balance ABSTRACT The analytical balance is used to measure the mass of objects and chemicals until the 0. Measuring Length A. Then, excluding the outliers, re-calculate the mean, median and standard deviation of this data set (use Excel). Refer to the rules given earlier for multiplication calculations, and 3. All calculations in lab should be done to the appropriate number of significant figures. Bring this handout. Chem. 2. Here's a format for a lab report you can Appendix at the end of this lab manual contains accuracy data for most instruments you will use), but the best way to assess the accuracy of a measurement is to compare with a known standard. 16 g of acetylsalicylic acid and record the exact mass on your report sheet or in your notebook. measure the pH. 2001, 73, 240-246. Lab 1-1: Measurement in Chemistry . 1. There are five stations and each group will have 5 minutes to complete each station. The basic SI unit of volume is the m. There is an assignment box in the ETLC atrium marked ECE432 Lab: H11, H31, H41. CHEM 101 Lab 1 Data Sheet (attach answers to the lab questions) 2 pages. Measure the dimensions of the two geometric  Chem 10, Section: Lab Show your work, and report your answers in scientific notation. Use 8 1/2" x 11" paper and do not write on the back of the sheets. Excel Report Sheet, CHE 210, Lab 1, Week 2. There are many potential hazards when working with chemicals, but all of them can be avoided with the appropriate precautions. CHEM 1405 Chapter Notes The notes for Chapters 1-13 have been edited by Mounia El-Amrani, HCC chemistry instructor. Prerinse the Same 10 ml graduated cylinder, used in part A, with approximately 1-2 ml of your unknown. 4. Density is a function of temperature because volume varies with temperature whereas mass remains constant. e. 18, questions and answers CASO 1 Familia Afterwards, you move to the Discussions, in which you ought to plainly explain all the numbers, observations and collected data. Look up the actual density of water: What are the units? 2. measurement. Materials: Lab paper . Complete the pre-lab assignment at the end of this handout. Learn vocabulary, terms, and more with flashcards, games, and other study tools. When you are done, you should have a data table similar to that shown below. The report should be written or typed on plain white paper in a neat form and presented on the date due. pages of the cited article; e. 98 g, and 10. Laboratory Make-Up Policy 3. Most chemistry lab activities involve the use of various measuring instruments. Laboratory 1 Static and Dynamic Calibration of Thermocouples Objectives This introductory experiment will give you a first experience in our Instrumentation and Systems Lab. The rectangle is at least 1. 3 pages. 79 Gasoline 0. Experiment 1F-1 MEASUREMENTS IN THE CHEMISTRY LABORATORY I DATA SHEET: Report all values with units and the proper number of significant figures. Lastly, 25 ml of water was added. Preparation For Chemistry Lab Measurement Lab Instructor:_____ PREPARATION FOR CHEMISTRY LAB: MEASUREMENT (Part I) Pre-lab questions need to be completed prior to your coming to lab. 11 g, 9. 02 g 3 = 30. 3 pages Lab Report 2: Measurements 2/01/2012 James Allison section 20362 Group 5 James Allison, Clint Rowe, William Cochran, & Sultan Alotaibi Abstract: In order to learn to properly use a meter-stick, vernier caliper, micrometer, & laboratory balance we used these instruments to measur Start studying Chemistry 121 Lab Test 1. The 7 rules of significant figures: 1. Record the ID code on your report form. The density of water at 40C is 1000g/1000 ml=1. 1 %. Full reports for general chemistry will also include a title page at the beginning and a brief conclusion Wearing contact lenses in chemistry lab is discouraged. 28 1. A centimeter equals 0. TAs love to take off points for this. AND REPORT . Density = mass units are: g or g where 1 mL = 1 cm3 volume mL cm3 To properly measure density, we need a container whose volume is known to a high degree of accuracy. session will 1. 10. Experimental error is defined as the difference between an experimental value and the actual value of a quantity. 01 g. The CER must always begin with a Claim (C). Measuring Length In all measurements be sure to estimate the final digit and write correct units. For example, a solution containing 10-5 F Mn2+ in H 2O is essentially colorless at all visible wavelengths of light. place (to the nearest 0. Lab Report: Isolation Of Caffeine Section 12­02 Nattanit Trakullapphan (Nam) Narissara Pracharktam (Nik) Thaksaporn Sirichanyaphong (May) Abstract: Caffeine can be extracted from tea by its ability to be better dissolved in dichloromethane than water. 1. Weigh out approximately 0. A. The City College of New York. Laboratory 1: Scientific Measurements Chemistry 1210 Due January 16, 2014 TA: Yi-Chen Hung Purpose: The purpose of this experiment Borrow a ruler and “shape sheet” from the front bench. When finished, return the ruler to the stockroom. 6) 5. If the hot plate you are  Cooperative Chemistry Lab Manual, 5th Edition by Melanie Cooper ( 9780073402727) Preview the Don't forget, we accept financial aid and scholarship funds in the form of credit or debit cards. CHM151L will often reinforce lecture course topics, STOICHIOMETRY LAB REPORT. CHEM 1405 PowerPoints From the publisher of Corwin's "Introductory Chemistry: Concepts & Connections. (2 ) To report as well as your own data sheet from the lab manual. 1 Scope It answers the question. Were you to measure the length of a sheet of tablet paper with a ruler marked o every millimeter the measurement could correctly be recorded as 279:0 0:5 millimeters Digital Instruments We must slightly modify the rule above when the measuring instrument indicates the measured value with a digital (numerical) display. 1 form indicating that the presentation was attended and that any associated training When recording a numeric measurement, the number of significant figures conveys 1. By definition, there are 1,000 mL in 1 L, so 1 milliliter and 1 cubic centimeter represent the same volume. 00 0. First rewrite your measurements from Table 1into the first row of Table 4 (no need to rewrite their uncertainty). g. 2. 2 Why could the measured values obtained Q. Here's a format for a lab report you can 4. 2) The top-loading balance is located on the counter next to the window in your lab. Measurement • Analytical chemistry is entirely about measurement, what these measurements signify, and the understanding concerning the quality of these measurements. Use 8 1/2" x 11" paper and do not write on the back of the sheets. Measurement - Ch. D. Mass Measurement. The person who did the measurement probably had some "gut feeling" for the precision and The object of a good experiment is to minimize both the errors of precision and the This is often the case for experiments in ch Answer to REPORT SHEET LAB Chemistry and Measurement A. Version 42-0165-00-01 Lab RepoRt assistant This document is not meant to be a substitute for a formal laboratory report. Laboratory Make-Up Policy 3. ) Report Sheet. In this lab we will briefly explore the following areas of measurement: Mass, Dimension, Volume, and Area. In a scientific experiment, the investigator examines the effects of variations in the independent variable on the dependent variable through measurements. Name: Esmeralda Arreguin Date: 1/31/2020 _/_points Experiment 1: 8. EYE PROTECTION 1. It requires the proper safety attire and equipment, knowledge of the 29 Jun 2020 Borrow a ruler and “shape sheet” from the front bench. 2 by writing the number of significant figures found 2. Measuring Volume B. 98 mL, the relative uncertainty is: Relative uncertainty = 24. Trial #2. Significant Figures In Calculations B. 5 0. 1. These range from a form to fill in and submit before leaving the lab, to a formal written report. What units are represented by the emers marked on th Dec 15, 2020 · Lab Report: Introducing Measurements in the Laboratory, Online Chemistry Lab Manual. CHEM 1405 Chapter Notes The notes for Chapters 1-13 have been edited by Mounia El-Amrani, HCC chemistry instructor. Lab reports are a way of documenting and interpreting the data you collect throughout your experiment. Part A: Making Observations in the Laboratory Observations – describe what happened Did a chemical reaction occur? 1. Safety in the lab is everyone's responsibility. Click on the link below to open the "Lab 1 Report" form. Report your answer to the correct number of significant figures. Preparation For Chemistry Lab Measurement Lab Instructor:_____ PREPARATION FOR CHEMISTRY LAB: MEASUREMENT (Part I) Pre-lab questions need to be completed prior to your coming to lab. This course will take a closer look at these components. Measurement of those physical quantities plays a crucial role in determining how nature behaves. Laboratory Make-up Procedure 4. MEASUREMENTS IN THE CHEMISTRY Construct an Excel spreadsheet and graph with trendline using laboratory data. CHE 101 Group Activity Chapt 7. ) As shown in Figure 1. pdf] - Read File Online - Report Abuse Lecture: Organic Chemistry, 7 ed. Zn and HNO3 2. 2. Calculate the average deviation for both trials (see end of sheet for help the following sections: 1) Title Page. whether your measurement (or tinkering) managed to agree with the expec Chemistry 103. Record these measurements on your report form. How to Meet ISO 17025 Requirements for Method Verification. 4by other students be different from yours? Report Sheet - Lab 1 B. g. 2. 10. Cover and label this solution. Measurement GOALS: (1) To learn to manipulate laboratory instruments to measure length, mass, volume, count, and time. (3) To learn the difference between precision and accuracy. Writing A Laboratory Report Laboratory Work Grading Policies A-7 Late Reports & Make-Up Policy A-8 1. 1. Learn about some common pieces of laboratory equipment and how to use each one properly. 28 Sep 2015 The final result from a chemical experiment, such as the value of ΔH for a particular Any measured or calculated value has some uncertainty in the reported value. (Remember, there are 3 feet in 1 yard. 11 g 3 = 10. They are based 1 SAMPLE LAB REPORT Joe Student August 19, 2010 Organic Chemistry Laboratory I (Chem 326-01) Instructor: Dr. LABORATORY SAFETY Laboratory work is basic to any scientific pursuit. 1 Calibrations 3. So, your search will look something like this: "sodium chloride safety data sheet fisher scientific". Measuring Length 1. 3. Instructor: Caroline Chen. Length, Meter, ______. 5 Customize any lab with the LabManager™ CD-ROM. Proc of energy, measured in joules, needed to raise the temperature of one gram of Chemistry-1. Mass measurement station may need instruction as well. e. What are the units of mass, length, and temperature in the International System of Units (Table measurement of the heat of solution, incomplete dissolving of the sample will inevitably tend to give a low result. Lab reports can vary in length and format. Laboratory Make-up Procedure 4. The Claim should be a concise statement that summarizes the main point or idea of the laboratory experiment. Length (millimeters to meters and similar), volume (milliliters to liters and similar) and mass (milligrams to grams and similar. Procedure: 1. A Claim, Evidence, Reasoning (CER) is a short writing piece that allows the students to succinctly discuss their lab activities. 3) Construct graphical representations of data. Measurements, Significant Figures, Derived Quantities, and Unit Conversions Chemistry is an experimental science. Report Sheet - Lab 1 A. Description. in exercises "FYSP102/1 Rolling" A well written measurement log is essential if you later Write numbered, coherent answers to all questions found in the lab manual. Coupling reactions: A compound forms by combination of the two or more accepted measurement standards, and at the individual laboratory level to demonstrate the necessary Eurachem/CITAC Guide: Metrological Traceability in Chemical Measurement. Zn and HCl 3. In this particular lab we used stoichiometry, the part of chemistry that studies amounts of substances that are involved in reactions, to observe the reactions made by combining sodium hydrogen carbonate, NaHCO3, (baking soda) and acetic acid May 30, 2019 · This is a collection of chemistry worksheets in pdf format. View Lab 1-Chemistry and Measurement. Molly O’ Connor Course Nbr. This laboratory manual engages students in the process by which chemists investigate the world—the process of inquiry. Zn and HNO3 2. Shot by Paul J. 00 Alcohol 0. 1. GENERAL. A quantity is an amount of something and consists of a number and a unit. Cover and label this solution. Mass, ______, kg Include all work, units and write answers in scientific notation (if applicable) for full  1F1-1. 3. 1 What units are represented by the numbers marked on the meter stick? cm What do the small lines marked on the meter stick represent? cm Complete the following statements: There 1000 mm. Jul 03, 2019 · You aced the chemistry units and conversions quiz!. When your lab report is complete, submit it to the Submitted Assignments area of the Virtual Classroom. Community College of Philadelphia Department of Chemistry CHEM 101 Distance Course Laboratory Report Sheet 0 B 639 E 4468610 CC 1785 A 8 F 91145427 C 47069 E 656. , Jahaad J. On the day of the lab 1. 1 Perform the following multiplication and division calculations. Experiment 1. The absolute error has the same units as the measurement. We estimate to 1/10 or 2/10 of the smallest division on any instrument to obtain the final significant digit in a measurement. Your conclusions provide an overall summary of the entire lab report, and the whole experimental session itself. The Lab Report Assistant is simply a summary of the experiment’s questions, diagrams if needed, and data tables that should be addressed in a formal lab report. General Physics I (Phys 20700) Academic year. 02 g. 4) Procedure. Plagiarism and Unauthorized Collaboration Procedures for Online Pre- & Post-Laboratory A-9 Accessing the Website A-9 1. Measure the dimensions of the two geometric shapes: length and width of the rectangle, and the diameter of the circle. They are based In any reported measurement, the numbers represent those know with certainty, and one (the last digit) that is uncertain. Group 6 Chemistry 26. g. Late Reports 2. 1to 27. 6) Results. 60 Glycerine 1. 2. How many centimeters are in 50,555 micrometers? 16. 1 Course Information, Check-in to Equipment Drawers, Laboratory Safety (Report Sheet). Tasks 3. 0 Lab Report Engineering Materials Lab Module A: Tensile Test Name : Muhammad Yossi Hadiyoso Student Number : 2014 31 0003 Lab Date : Saturday, March 4th 2017 Report Handover Date : Friday, March 10th 2017 Materials Engineering Laboratory Applied Physics Study Program Faculty of Science and Technology Sampoerna University 2017 The measurement of pH is the most widely employed test for (bio-)chemical lab. Convert 15 kg to mg. Final Mass of Cylinder + Water (g) g g. If you use the stick to measure your lab partner’s height and determine that she is 175 cm tall, you can equally report that her height is 1. 2x10-3 mL = 0. Failure to obtain a satisfactory result in a lab is usually the result of improper or inaccurate use of measuring instruments. Convert 2. Chemistry lab reports Academic Tip Sheet CRICOS IPC 00279B 01/08 This academic tip sheet: • outlines the guidelines for writing a laboratory report; and • looks at what you should write in each section. Convert 3. 4. Learn vocabulary, terms, and more with flashcards, games, and other study tools. 5 yards to inches. Matter - Ch. Carefully measure the width of the foil in cm and record the value to three signif i-cant digits. Complete Table 1. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Full reports combine the Because acetylsalicylic acid is colorless, it was hydrolyzed to form The absorbance and transmittance of the solutions were measured at 530 nm. For example a metric ruler which has millimeter marks has a least count of 1 mm or [Obviously, reporting a measurement of 7. Know It All Report 1 Synthesis of Benzopinacolone from benzophenone. Chemistry Lab: Introduction to Measurement. Once the measurement is completed, each member of the group will record the results in the appropriate table/chart. Probably the most common application in biology of this technique is in the measurement of the concentration of a compound in solution. State the magnitude of the smallest division, and give the units, for the following instruments: C. Record its number on the report sheet. If your instructor gives you an outline for how to write a lab report, use that. Rinse the tip of the pH pen with tap water between tests. Learn vocabulary, terms, and more with flashcards, games, and other study tools. 3) First check it for any dust or chemicals, brushing any that you see. Lab report structure. system of measurement uses many units. Chem 1 Goals for CHM 111 & 112 Laboratory Experiments and Reports. Rejecting data points cannot be done just because you want your results to look better. For any chemistry lab report, you will need to write down or type the entire procedure and everything observed during the lab activity. Convert 0. Mass of graduated cylinder and water = 5. Rulers: The basic metric unit of length is the meter, but the length of most objects in a chemistry lab are measured in centimeters (cm). 5 0. Lab Partners: Mikko O. 5 0. Calculate the Percent Error in your measu Accuracy is measured and reported as an uncertainty. 50 grams and my measured volume was 46. 98 mL x 1. Start studying Lab 1: Measurements and Significant Figures. 1. Describe proper usage and measurement techniques for common laboratory tools. Carolina offers the highest quality kits for a hands-on approach within AP Chemistry classrooms. report. 03 mL distilled water, dropper, beaker, Water Sample 1, Water Sample 2, dish detergent, metric ruler 45 min Suggested Pacing Period Section 1. Trial #1. Pre-Lab Assignment 1. a. Thanks to the Questions & Answers Please see Artel Lab Report, Issue 1, How Many Data Points6. ) Answers to all Questions Unless told to include in another section of the laboratory report, give the answer to all questions posed in the lab write-up and any other handouts. 4)(15. Data. , no sandals or fl ip-fl ops). 67 Table 2. 1 Overview This chapter discusses the evaluation and reporting of measurement uncertainty. You can expect to become familiar with the most basic concepts of using transducers for measurement and the acquisition of data with a Jul 19, 2019 · Lab reports are an essential part of scientific study and knowledge. 3) Introduction. Our activities range from fundamental and applied research on the composition, structure and properties of industrial, biological and environmental materials and processes, to the Los Angeles City College Chemistry 51 Fall 2005 3093 Scientist: Lab partner: Experiment 3 Density Part 1: DENSITY OF WATER 1. Diameter of a polystyrene sphere using the metric ruler (in centimeters). measure the pH. Nov 30, 2018 · 4. Abstract This paper talks about several points in a conducted lab experiment known as the “Solubility of Salts”. Measurement and Density The mass of a liquid or solid can be measured using a balance. See Section 6 for more detail about specific analytes. Precision = A term used to describe how close repeated measurements are to each other . 1. View Notes - Lab Report 1 from CHEM 1210 at Ohio State University. 4) The balance must be perfectly leveled. Transfer this sample into a 125 mL Erlenmeyer flask. Essential Ideas. e. 000 kg. Each measurement has an amount, a unit for comparison, and an uncertainty. Lab 02: Metals Density Problems. 97. The number tells us how many (or how much), and the unit tells us what the scale of measurement is. Report Sheets (1). If your instructor gives you an outline for how to write a lab report, use that. Name: Esmeralda Arreguin Date: 1/31/2020 _/_points Experiment 1: 1 PREPARATION FOR CHEMISTRY LAB: MEASUREMENT (Part I) Name: _____ Always read over the experiment and complete all pre-lab questions prior to coming to your laboratory session. 3. 1 to 1 Table 1. 4. Record the results. Safety is a key concern in any scientific enterprise, but particularly so in the chemistry lab. 7 . Plagiarism and Unauthorized Collaboration Procedures for Online Pre- & Post-Laboratory A-9 Accessing the Website A-9 1. docx from CHEM 121 at City Colleges of Chicago, Wilbur Wright College. Record your actual value in the data sheet. Measurement and Significant Figures Report Sheet Date: 11 February 2016 Name: Alexandra Kidder Section: 43482 Team: N/A Measurement Lab #1 - Lab report. 2) Differentiate between precision and accuracy. On the second experiment, the equipment burette was involved for the measurement. Lab Report sheet CHM 101 NVCC ELI Your name _Amanda Anile_ Date_03/17/17_ Experiment title: Answer to REPORT SHEET LAB Chemistry and Measurement 1 A. A. (Remember, there are 365 days in 1 year. Viewing the Pre-laboratory Presentations. Identify the eye wash areas and lab/building exits closest to you from day one in the lab. Purpose: If you encounter a three part lab the Accuracy = How close a measurement is to some accepted, true value 1. 4. 5 kilograms (kg), he can also report that his weigh is 67,500 grams, although the kg unit is more Pre-Lab Report: Experiment 2 LABORATORY MEASUREMENT - THE METRIC SYSTEM . Benedik, Practical examples on traceability, measurement uncertainty and validation in chemistry Vol 1, 2010, European Commission, Joint Research Centre (https://bookshop. 4, or only 0. 1. 5. Set up 3 graduated cylinders on each lab counter (two groups will share each set) for part A with colored water in each as shown: Chemistry 121 Lab 1: Measurement and Density. Laboratory Techniques and Measurements Peter Jeschofnig, Ph. At each station, the group will perform a measurement that is commonly used in a chemistry lab. 5. 1: Taking Measurements Chemists measure the properties of matter and express these measurements as quantities. EXPERIMENT 1 Chemistry 110 LABORATORY SAFETY MEASUREMENTS PURPOSE: The Purpose of this laboratory exercise is for the students to develop the skills of measuring length, volume, mass and temperature and to perform simple unit conversions and to learn about laboratory safety. Take the beaker and report sheet to your instructor, who will pour an unknown into the beaker. 265 1) Obtain a numbered metallic object from your instructor. 2. europa. 2 Laboratory Measurements (Quiz, Lab Notebook  20 Jan 2012 Perform calculations and write the answers with the correct number of significant figures and units. This error is due to limitations  Sections: Section 1: Chemistry and Matter Section 5: Making Measurements in the Lab Understanding how chemical molecules form and interact to create complex The scientific method is an organized procedure for learning answers 13 Nov 2015 cision of the measurement. It can be written as: E= m 1!m 2 "m # $% & '( X100 Equation 1 where: E is the percentage difference; m 1 is the measurement by CMM; m 2 is the measurement by Vernier Calipers and Δm is the Lab Report 6 Lab Report 7 Lab Report 9 Speech Lab 13 - lab 13 Rebika Chatterpaul Lab 11 CH 127 LAB #9 - Lab report Laws in modern American law system are based on centuries of English principles regarding the rights and the wrongs Mod 4 Epistemeology Truth Lab Report # 11 DAN105 - Mandatory essay on topic given Ph-101 lab#4 - Lab report PH-101 LAB #7 - Lab report PH-101 Lab #13 - Lab report View Lab Report - Chemistry-Remote-Lab 1 - Mearument lab 1. You will demonstrate your ability to convert the original measurements to lower and higher values by moving the decimal point the correct number of places in the proper direction. Taylor, L. pdf). Obtain a “shape sheet” from your instructor, and then use the ruler to measure the dimensions of the two geometric shapes on it. If you're looking for an SDS for a specific consumer product, it's important to find the one from the manufacturer of that product. Give a final answer with the correct number of significant figures: 4. Cu and HCl During the first year of high school chemistry or the first semester of college chemistry, all the terms, units of measurement, and atoms, molecules, elements, and compounds may seem a bit overwhelming. Be sure to keep the ends measurement. AP Chemistry. The accuracy is a Handbook of Chemistry and Physics. 5 0. (Table 1. Guidelines for writing lab reports Laboratory reports are a written version of the experiments that you performed in the lab. Some instructors require a lab report to be included in a lab notebook, while others will request a separate report. Worksheet - Matter Lab - Classifying Matter with Hardware Lab - Classification Rotation Lab - Chemical & Physical Changes (option 1) Lab - Chemical & Physical Changes (option 2) Activity - Categorizing Matter. •. (1) Smith, A. What are the units of mass, length, and temperature in the International System of Units (Table Lab 1 - Measurement of Mass, Length, and Time Introduction In an experiment we define and determine the relationship between physical characteristics of nature that have been observed. in each measured quantity. 5 g, while the range for to Balance #2 is from 26. DEPARTMENT OF CHEMISTRY. Week 1, Report 2: Measurement Title: Measurement: Length, Mass, Volume, Density, and Time Laboratorial Report 2 Created to fulfill the assignment for Mechanic and heat EN222 subject By: I Wayan Surya Aryana (2014370006) Lecturers: Lina J Diguna Fatih Sampoerna University Jakarta, June 8th, 2015 Week 1, Report 2: Measurement Abstract Measurement is an essential activity that need to be experiment date(s): 1 Experiment 1 - Density of Liquids and Solids Goal: To accurately determine the density of an unknown liquid and an unknown solid. "safety data sheet" Manufacturer's name, if you have it. Using the above criteria, determine if there are any outliers in the College #1 dataset. We have Start studying Chemistry Lab- Content from Lab #1. eu/en/home/) AOAC International. Significant Click the link to check your answers: Answers Objective: What types of laboratory measurement should use MU? 1 x 10-9) and a reference (e. Examination of the effect of the addition of a strong acid/base to Buffered or Water Solutions: In this part of the exercise the new pH of the buffers, solutions 1 and 2 will be measured after Report Sheet - Lab 2 B. weight and volume measurements to determine the density of a liquid. 1. What Is Chemistry? • Chemistry is the science that seeks quantitative — a measurement, which contains Do the following calculations, rounding the answers Every number that you measure in the labora . However, they all usually follow a similar basic structure. Record these values on your lab report. 1 mL). 2 Section 1. 1) Compare your volume measurements in the table above. 96 cm 2. 13. Laboratory Report Format. 2 of the Data and Report Sheet. In Aug 18, 2020 · Combining the digits, we have a measurement of 4. Unroll and tear off a pie ce of aluminum foil about 45 cm long from a roll of the foil. 1 Calibrate the regular Hg thermometers against the ASTM Hg thermometers (ASTM stands for “American Society for Testing and Materials”, which is the non-profit organization that writes The laboratory supports the NIST mission by serving as the national reference laboratory for measurements in the chemical, biological and material sciences. 46 cm3 Measurement of the volume Using a graduated cylinder (one ball) 3. Learn vocabulary, terms, and more with flashcards, games, and other study tools. The instructor will decide if the provided REPORT SHEET will be used or whether a FORMAL REPORT needs to be written. 0 cm wide but certainly not 2. the experiment with emphasis on the measurements you made and transition to discus The students must attend the General Chemistry Laboratory course in exact ( look at entries 1, 3, 4, 11) and no reports for the mentioned lab. Lab: Specific Heat. Trial Sample 1 1 2 3 Avg. Submit as directed by your instructor. 2016/2017. Relaximages / Getty Images Great work! You did well on the units and conversions quiz. Mass in the metric system has several units that scientists use most often. February 7, 2019 IDOS, Gio Angelo G. Feb 28, 2014 · In an industrial laboratory, inadequate lab records ultimately cost the company money, either in the cost of time and materials or as the result of legal action. Thus, adequate record keeping will be stressed in all chemistry laboratories at Please refer to Chemistry 1250 General Chemistry Laboratory Manual, 2016, Department of Chemistry, The Ohio State University, Hayden McNeil, Exp 6, pages 52-54, for the proper procedure. 5 mL,  (1) To provide a record of the experiments and raw data included in the report,. included with any post-lab assignment or lab report. We provide products designed for the new and old curriculum. Measurement, Unit, Symbol. The laboratory and lecture are separate courses and you will be assigned a separate grade for each. g. Densities are in g/cm3. Experiment 1: Colligative Property, Freezing Point Depression CHEMISTRY 110 Desk Assignment Sheet The medium for the lab reports (print and/or electronic) will measuring the freezing point depression of a solution of this sol 1. For this situation, it may be possible to calibrate the balances with a standard mass that is accurate A liter is a little larger than 1 US quart in volume. This handy Cheat Sheet provides some basic information you can refer […] 1 Introduction to General Chemistry I Laboratory General Chemistry I Laboratory (CHM151L) is designed to be taken by students enrolled in General Chemistry I Lecture (CHM151). Long pants or long skirts are required in the lab at all times. 3398 Mar 20, 2018 · Lab report engineering materials lab - tensile test 1. The following is what you are expected to hand-in one week (by 4:00pm) after completion of the lab. In this lab, you will also calibrate the Davis temperature sensor for your weather station. 9 of the Data and Report Sheet. They may be collected at the beginning of the laboratory period. Please, staple everything together in the following order. At 20 0 C, the density of water is 0. 29 Sep 2015 Before you leave the lab you must have your lab instructor initial your report sheet. Remove matches and papers, and wipe down the surface with water and paper towels. ; Moini, M. PART 1 REVIEWING SI MEASUREMENTS. What units are represented by the numbers marked on th Many of your Science units will require you to write a formal laboratory report. Lab #4: Solubility of Salts Larissa Guillen and Abigail Delgado Course 1411, Section 520 November 10, 2014 2. in the main body of the text are usually written in abbreviated 1 Jul 2018 In clinical chemistry and laboratory medicine, MU assessment is required as This map can also be presented in the form of % of the mean value for the According to Technical Report 1/2007 of the European Federation o I was surprised to see that the density of water did calculate out to be exactly 1 g/ mL. NO CREDIT will be given for lab reports without the instructor's  1. Teacher Prep Sheet. 3 0. " mean and standard deviation of the three measurements and record them in your lab notebook. Come on time to room 301. concise form what the experiment is all about, i. Smaller derived units are the cubic decimeter (dm3) and the cubic centimeter (cm3). For time and speed reasons, the reaction mixtures in lab will usually have a limiting and an excess reactant. Reporting Absolute Error. Start studying CHEM 101L: Lab 1: Chemistry and Measurement. AOAC/ ALACC, 2007 (www. The paper "The Hall Effect: Measurement and Instrumentation" is a good example of a lab report on engineering and construction. 6. Name: Esmeralda Arreguin Date: 1/31/2020 _/_points Experiment 1: 1 EXPERIMENT A1: MEASUREMENTS Learning Outcomes Upon completion of this lab, the student will be able to: 1) Use various common laboratory measurement tools such as graduated cylinders, volumetric flask, burettes, electronic balance, and thermometer. UNITS OF MEASURING Measurement Length  If you have problem with any of the labs tell me and I will send the lab alone. 26 Milk 1. Accuracy and Precision Lab. 1. Add 5 mL of 1 M sodium hydroxide and carefully heat the mixture until all solid dissolves. Lab 1 Report; Safety Quiz To demonstrate successful completion of all safety materials, you must also take a graded quiz on Laboratory Reports A report is required of each experiment and will be used to determine a grade for that experiment. After completing the pH measurements, comment on the pH of the salts as compared to the pH of the acids and bases Clinical chemistry is the branch of laboratory medicine that focuses primarily on molecules. pH Testing. Stations Lab: Scientific Measurement. [Filename: 2011SP-CHEM-1405-2005. Make sure to write your name, your lab TF's name, and your lab time at the top of your paper. 3 Prepared by Carrie Miller, August 2014 1 FULL REPORT GUIDE General Chemistry Lab Reports Full reports combine the introduction, methods, results and discussion sections in a single coherent paper. Find the standard deviation in these measurements. Some instructors require a lab report to be included in a lab notebook, while others will request a separate report. 03 Sea Water 1. 037 g The metric system has one standard unit for each type of measurement while the U. ) Section: _____ Date: _____ Density DATA AND CALCULATIONS: Part A – Density of Water Trial #1 Trial #2 Final Mass of Cylinder + Water (g) g g Mass of Empty Cylinder (g) g g Mass of Water (g) g g Volume of Water (mL) mL mL Temperature of Water (°C) °C °C Density (g/mL) g/mL g/mL 1. Helpful? 14 6 SAMPLE DATA SHEET CHEM 117 LAB 1: LENGTH AND VOLUME Measurement of the volume with a ruler 1. docx from CHEM 121 at City Colleges of Chicago, Wilbur Wright College. If you have a series of repeated measurements of the same pro 15 Jan 2018 CHEM 2045L – General Chemistry 1 Laboratory (1 credit) You may not sign the attendance sheet until your TA has checked your station. Have students measure something at home under 1 foot; over 6 feet; capacity of cooking pots. 4. Errors may be divided into (See problem 1 in the Pre-Laboratory Assignment. Your lab report should begin with the experiment number, title of study, name(s) of the authors, course number Trusts and Equity Lecture Notes - Lecture notes, lectures 1 - 10 Test 2018, questions Europe IN THE 16TH Century Lab 2 - Reynolds Number Lab Exam 2 April 17. For example, in lab,  1. Volume of water added to graduated cylinder = 4. 3 pages. You only have to hand-in one copy per group. Material safety data sheets are available in the lab in case you need to review them. Closed-toe shoes are required at all times in the lab (i. It will be used in the last part of the lab exercise. Record the ID code on your report form. Measurements provide quantitative information that is critical in studying and practicing chemistry. 3398 24. Course. When reporting results, two useful quantities are the average (or mean) and  . LABORATORY NOTEBOOK RUBRIC Carefully kept records will be useful when writing lab reports and when designing your own experiments. Project 1: Measuring the heat content of foods . 2 years into hours. Fill the wells of the spot plate (3/4 full) each with one of the solutions listed in part A of the report sheet. Remember to use the following formatting: - If typed, use size 12 Times New Roman font and single spacing. University. Laboratory measurements always involve uncertainty, which must be considered when analytical results are used as part of a basis for making decisions. All uncertainties are reported to 1 significant fig When making a measurement you must always estimate 1 place past the smallest divison. You are required to wear approved eye protection in the laboratory whenever you are doing any experiment or whenever any experiment is being done in the laboratory around measurement is much more precise than the original estimate, how do you know that it is accurate, and how confident are you that this measurement represents the true value of the ring’s mass? Since the digital display of the balance is limited to 2 decimal places, you could report the mass as m = 17. stand and filled with standardised NaOH(aq) and the initial measurement was recorded. Clean and dry it. Written to accompany General, Organic, and Biological Chemistry, Second Edition by Frost & Deal, it can also accompany the lab portion of any one-semester GOB chemistry course. Students discuss results within groups, then groups share with class. CHM 130. Lab report. 11:22 PM Wed Aug 26 34% T Chemistry 130 Experiment 1 - Measurements in the Laboratory Report Sheet Experiment 1 - Measurements in the Laboratory Date: Name: Last First MI Lab Day: Partner Name: Last First MI Station A-Length Measurement cm A 4/10 Measurement + Uncertainty cm Distance across lab page Distance top to bottom lab page 5 cm 8 A/10 Measurement + Uncertainty mm Distance across lab GUZMAN, Catherine Bernard Y. General Chemistry Lab Reports. Record these outlier measurements (if any) on your report. , & Nadine C. 9982 g/ml. 4. Feb 03, 2020 · Lab reports are an essential part of all laboratory courses and usually a significant part of your grade. Flask 1 1st 2nd 3rd Tare mass, g 24. Accuracy = How close a measurement is to some accepted, true value . Start studying Lab 1: Measurements and Significant Figures. pH testing made easy with all the supplies you need for your biology and chemistry classrooms or laboratory practices. Contents. Each group must submit a lab report for each experiment performed. Every measured result reported by a laboratory LABORATORY PROCEDURE 1. uphold the Honor Code, you should report any condition that facilitates academic 2 Jan 2002 Each group must submit a lab report for each experiment performed. The density values of some solids, liquids and gases near room temperature are listed below (Table 1). chemistry and measurement lab 1 report sheet

    Last revision:
    chemistry and measurement lab 1 report sheet 0300 (42. Majcen, P. Measuring Length 1. measurement of plasma A patient report shows serum rhubarb results on two samples collected a week is why analyte Chemistry. report the data “as is. Course: Principles The form that is usually used in chemistry is known as the CGS. 3. 2. Complete the lab report form and save the completed PDF with your last name and lab number (for example: jones_lab1. Convert 25 cm to mm. 7 g. 98 g+10. FULL REPORT GUIDE. The analyte substance must strongly absorb light of the wavelength employed for measurement. Introduction. The tests in a clinical chemistry laboratory measure concentrations of biologically important ions (salts and minerals), small organic molecules and large macromolecules (primarily proteins). system LABORATORY REPORT DATE :  19 Jan 2018 Writing a lab report is an essential part of completing the laboratory exercises This is especially important e. When finished, return the ruler and sheet to the front bench. Trial Sample 1 Volume Calculate the Density. 5) Data and Calculations. 1 Section 1. Experiment 1F-1. View Lab Report - Chemistry-Remote-Lab 1 - Mearument lab 1. 000 g/ml. Step 1: Find the average 10. By: Haley Gorman. What are the units of mass, length, and temperature in the International System of Units (Table Chemistry lab reports Academic Tip Sheet CRICOS IPC 00279B 01/08 This academic tip sheet: • outlines the guidelines for writing a laboratory report; and • looks at what you should write in each section. Experiment 1: Measurement and Precision Report: In addition to the standard elements of a well written lab report described in the introduction to this manual, your report must include: 1) An appropriate title 2) The objective of the experiment 3) Your group’s data in an appropriate format 4) A graph of your group’s data Feb 03, 2020 · Lab reports are an essential part of all laboratory courses and usually a significant part of your grade. 1 What digits in the measurements for the line by other students are the sameB as yours and which are different? Q. They may be collected at the beginning of the laboratory period. Cu and HCl A. Cu and HNO3 4. Texas A&M Chemistry. These measurements will encompass mastering the metric ruler, gram scale, and the graduated cylinder, and thermometer. 2) Abstract. Data [Templates for the report sheets and tables in the lab manual are on Carmen and can be accessed via the links there. They may be collected at the beginning of the laboratory period. Be aware that biology and chemistry lab reports will have slight differences, depending on your instructor’s preferences. 0 x 10 3 mL to L. Any lab report should allow the person reading it to be able to reproduce the exact procedure (and result, hopefully) carried out in the lab. 8) Answers to all Questions. • In this class, you will be performing a number of experiments to measure the concentrations of various analytes and performing statistical U si ng th er ul dab 1, p cf w o r eac hstd i ng k by w um ( C M and Vernier Calipers). a) Tear a sheet of notebook paper into 8 equal size rectangles . Chemistry 101 Page 5 of 191 Syllabus Activity Report Points Unknown Points Tour of the laboratory, Laboratory Procedures Proper Use of Laboratory Notebook Safety Video ­­ ­­ Experiment #1: The Balance 10 ­­ Periodic Table of the Elements (Video) Check In ­­ ­­ Experiment #2: Density; Part 1 and Part 2 5 5 19 MEASUREMENT UNCERTAINTY 19. 3 Section 1. Part A: Making Observations in the Laboratory Observations – describe what happened Did a chemical reaction occur? 1. docx from CHEM 121 at City Colleges of Chicago, Wilbur Wright College. Name: Lab #1 – Density. Many substances simply do not absorb light (or absorb only weakly) at any convenient measurement wavelength. Example Problem: Finding Standard Deviation A student measured the mass of a weight three times and recorded 10. 9 “The Liter”, a liter is also 1,000 cm 3. TAs generally don't want to  In chemical measurements we try to eliminate errors. Measure the Volume. An example of the relative errors for the pipet measurements: Assuming the experimental value was determined to be 24. 33 psi (psi stands for "pounds per square inch" and is a unit of pressure, like air in a tire). Please type your answers. In either case, the cost to the responsible employee is their job and all possible future employment. Part I: Answer the following questions while in the Phase 1 lab environment. I. 000 L of water at 4 0C is 1. 1 mL = 1 cm 3 Experiment 1 21 Measurement and Uncertainty In this part of the lab, you will gather some data from your lab mates, to find out the average (mean) width and length of 10 first year physics students’ hands and its uncertainty. The precision of measurements for Balance #1 is better (i. , made with a  To become acquainted with metric measurements, the use of common lab apparatus, and the report sheet, using the correct number of significant figures. The answers to the questions are available on separate worksheets so you can fill them out and then check your work. Measurements can be represented in either decimal or scientific notation. 1 mL from the stated volume. Specimen Volume (cm3) Mass (grams) Density (gm/cm3) Liquids Density (g/cm3) Mercury 13. Their respective SI base units are the kilogram (kg) , the meter (m) , the second (s) , and the kelvin (K) . sheet and throughout the lab report. 11 g+9. Likewise if a student uses a metric scale to determine that he weighs 67. 3. The units generally used for solids and liquids are g/mL, for gases g/L. ) Section: ______ Date: Part A – Density of Water. The last lap in our “race” is to write a laboratory report. measurements of the mass of water contained by each of the three flasks. See the following sample calculation. Feb 21, 2017 - Unit conversion worksheets for the SI system, or metric system. 3 Scientific Measurements—Four basic physical quantities of measurement are introduced in this section: mass, length, time, and temperature. 25 hours to seconds. It will be used in the last part of the lab exercise. Every measurement has an uncertainty, or built-in error. We’re serving students remotely while our physical locations are temporarily closed to the public. The range of measurements for Balance #1 is from 26. 1. Introduction. Zn and HCl 3. Write legibly or (even better) type, and use proper grammar. 1. Convert 1. Because this drag is due primarily to a pressure difference, measurement of the pressure distribution about the cylinder allows for finding the drag force experimentally. For example, let's assume a biologist is studying the effect of temperature on plant growth. Lab Report. Measurement and Significant Figures Report Sheet Date: 11 February 2016  CHEMISTRY LAB #1. 1. 0345 0. 7. 4) gives approximate equivalents for some of the units used in chemistry. “ Enter all the density data into the spreadsheet program that will be Chemistry Lab 1 Measurements. Learn about chemical reactions, elements, and the periodic table with these resources for students and teachers. 0. Calculate the volume of the polystyrene sphere in cm3 from the measured diameter (V = 4/3˜r2) 0. Record your actual value in the data sheet. : View Chemistry and measuremnt LAB REPORT (1) from CHM 101 at Northern Virginia Community College. I. The cubic decimeter is commonly referred to as a liter (1 dm3 = I L = 10−3 m3) and the cubic centimeter as a milliliter (1 cm3 = I mL = 10−6 m3). First-aid kits are The stockroom has a catalogue of MSDS (Material Safety Data Sheet) sheets percentage of various land types reporting greater than 1 mg/L of nitr Lab Schedule: Chem 1A Lecture and Lab Schedule F18. 2B CHEM 1405 PowerPoints From the publisher of Corwin's "Introductory Chemistry: Concepts & Connections. View Lab Report - Lab#1 from CHEM 1411 at Dallas County Community College. It is important that the answers are not rounded at each step, only at the very end, to avoid rounding View Lab Report - Lab#1 from CHEM 1411 at Dallas County Community College. measurements form the basis of scientific inquiry, they are deserving of in-depth analysis in lab. FV 12-5-14. In laboratory experiments it is difficult to measure out chemicals in the exact ratio necessary for the chemical reaction. Table 1. 3 pages. " CHEM 1305 and 1405 cover Chapters 1-13 of the 6th edition of the textbook, and Chapters 1-12 of the 7th edition. Set up a spot plate. Ramsey, Media Resources, Eastern Kentucky University. Calculate the corresponding volumes of water contained by each of the flasks, and calculate the mean and sample deviation for each flask. Equation 1 was used to calculate this percentage difference. 3398 24. There are numerous laboratory tests that can be done. - Leave one line of blank space between each response. If you are having problems measuring the test tube, get out a sheet of note book paper. Scientists primarily use the SI (International System) or metric systems. For instance, "Armada is a great place to live. The good news: Your Chem I class doesn’t have to be torture. Mass of a dry 25-mL graduated cylinder = 3. mmol/L, dimension one) e. 7) Discussion. Print/ Section 1: Cooperative Chemi This page contains answers to the measurements portion of the Common Lab results for measuring Box 1 in the Common Lab Measurements lab in Chem 10. 1. Cu and HNO3 4. 075 m to cm. Table I. 2 MASS, VOLUME, AND DENSITY MEASUREMENTS. The three variables you will measure most are mass, volume and temperature. 5 0. 01m or 1 100 of a meter, so 1m 100cm just like 1 dollar 100 cents (since one cent is equal to 100 1 of a dollar). The Hall Effect is the creation of a voltage difference an electric conductor placed perpendicular to the direction of the magnetic field and electric current as shown below. Chemistry 101 2-MEASUREMENT: VOLUME, MASS AND DENSITY Section_____ Name_____ Questions 1. b) Without a ruler, draw a free hand line that you estimate to be 5. INTRODUCTION Two of the most frequently made measurements in the chemical laboratory are the determination of mass and volume. D. The following format is recommended and should be adhered to closely unless your instructor decides otherwise. Divide the standard deviation by the mean and multiply by 100% to determine if your results agree within 0. , Lehman Students must have There are several dozen prefixes used but these above are most commonly used in Science measurements. Zeros between nonzero numbers are significant For example: 1 004 = 4 significant figures 3. View Lab Report - Chemistry-Remote-Lab 1 - Mearument lab 1. Carefully mark a length exactly 40. Organic Chemistry: Techniques and Transformations 3 Follow your instructor’s guidelines for a laboratory report and be certain that your report includes (1) the number or letter of your unknown compound, (2) your measured melting point range for your unknown compound, (3) the compound names and melting Experiment 1 (Lab period 1) Spectrophotometry: Absorption spectra and the use of light absorption to measure concentration Spectrophotometry is a procedure that is frequently utilized in biological laboratories. Density of some liquid substances. Measure the length and width of the rectangle, and the diameter of the circle. " CHEM 1305 and 1405 cover Chapters 1-13 of the 6th edition of the textbook, and Chapters 1-12 of the 7th edition. Report Sheet (10 pts. 1. ,. You must show all your work, including units, and report final results with the correct [1] Significant Figures. 11. Write down your unknown number. Examination of the effect of the addition of a strong acid/base to Buffered or Water Solutions: In this part of the exercise the new pH of the buffers, solutions 1 and 2 will be measured after 1. 8 Each day, before you leave your lab bench, clean off the bench surface. 0001 gram accurately and precisely. Measurements and Conversion: Data Sheet Name _____ Report Page 1 of 3 Include the proper units for all measurements and show all your work for any calculations. Chemistry PowerPoints This page contains links to PowerPoint presentations that may be used by any teacher or student who can benefit from this resource. 1 Volume of a liquid (Include units for every measurement) 1 Cylinder2 3 Volume (mL) Preparation For Chemistry Lab Measurement Lab Instructor:_____ PREPARATION FOR CHEMISTRY LAB: MEASUREMENT (Part I) Pre-lab questions need to be completed prior to your coming to lab. 3. Introduction: This experiment was designed to provide experience in preparing compounds using a two-step synthetic scheme. Organisms and Their Environment - Open Response Question 1 Organisms and Their Environment - Open Response Question 2 Contour Maps - Open Response Question 1 NJASK - 8 Competition Units, Measurements, and Conversions Units, Lab Equipment, & Measurements - Self-Assessment Sheet Identifying the Appropriate Unit Classifying Units Chemistry. Got questions about EvCC? Text us at 425-382-7533. Ver. Significant figures are an indication of accuracy and precision within a measurement. Chemical Safety in the Laboratory - Regulations. , better agreement between measurements), but is it more accura If the true mass of the te? General Chemistry I (FC, 09 - 10) Lab # 1: The Densities of Solids and Liquids Revised 8/19/2009 1 The density of a material may be defined as mass per unit volume. Measure the length of a 13 x 100 mm test tube with each of the following: (a) METRIC RULER A, and (b) METRIC RULER B. This is a Station Lab. Deliverables: Total 30 Points (12 points) Create a data sheet showing all the recorded volume and weights with a total of 3 sheet shots (1 for each metal from being in the lab with the vials, scales etc…) Lab #1 – Density Report Sheet (10 pts. (2) To introduce the relationship of the metric units to English units. Write your answers to the pre-lab questions on a separate sheet of paper. D. Solution for Chemistry 310 Lab 3 – Measurements Name Report Sheet Part 1: Obtain mass of a liquid in a beaker using weighing by difference technique Trial 1… Lab 8: Gen Chem I: Aspirin Synthesis Lab 9: Gen Chem I: Solubility Experiment - lab report Chemistry- Chapter Summaries HW 5 - Assignment 5 for manufacturing processes Lab 7 Recycling Aluminum Cans 1 - work and energy Lab 1: Gen Chem I: Seperation Lab 3: Gen Chem I: Best metal Discussion 9 : Identification&Role Of Witnesses : CJ 306 Lab 1 sugar water density Lab 3 Energy Changes in Chemical Next, 1 ml of NaCl solution was taken by using pipette to the 25 ml volumetric flask. Length Measurement 1. Late Reports 2. Purpose of Experiment: To explore how to find the density of metals by the displacement method. 1184 8. 0 cm wide, so the first significant digit is 1. , the chemistry or Meeting Experiment. Apr 16, 2015 · Chem Lab Report (1) 1. March 11th, 2013. 8, or 1. DOC 1 of 8 Name: Aamenah Cheema Date: Jan, 01-2021 to Feb, 07-2021 Email: [email protected] or [email protected] Laboratory Instructor: Dr. Page 13 of 14 Bellevue College | CHEM& 161 2) (a) Provide a measurement for each of Report Sheets: Density Lab Instructions: It will help your ins Chapter 1. All nonzero numbers (1-9) are ALWAYS significant. 75 m. Since the first use of glass electrode to detect pH, new techniques and methods have broaden the scope of pH detection. The difference in pressure multiplied by the projected frontal area 1 Fluid Mechanics II Lab Sheet of the cylinder gives the drag force due to pressure (also known as form drag). Section 1: You will be testing 4 known solutions for pH levels using a standard wide-range N. My measured mass was 46. 9. Q. If you have trouble with any specific types of problems, try looking at a worked example problem to review the concepts and see how to proceed. 02 Water 1. Section 2: Laboratory Equipment and Functions!4 of !5 ! Answer the following questions on a separate sheet of paper. Writing A Laboratory Report Laboratory Work Grading Policies A-7 Late Reports & Make-Up Policy A-8 1. I have found that it is much easier to incorporate small, topical presentations into a course. 8. Writing Lab Experiment 1-Mass, vol, graphing Graph for Expt 1 Chem 1A695 · Experiment 2- Metric Measurement · Experiment Exp 3 report sheet – Unknown Liquid. 4 Assessment Single 1 1 1 1 1 Block 0. Transfer the measured length and width values from Table 1. Guidelines for writing lab reports Laboratory reports are a written version of the experiments that you performed in the lab. - If handwritten, print your responses neatly. Writing a Chemistry Lab Report. Anal. org) Improper utilization of lab equipment can lead to serious injury. 12. pdf from CHEM 1a at California State University, Bakersfield. C. S. 43 ± 0. ) 15. Page 2. Convert 1. 1. aoac. Lab 1 : Orientation Click on the link below to open the "Lab 1 Report" form. Introduction. metric stick the report sheet. We say that the measurement is reported to three significant figures. Chemistry 101 Exercise 4: Using VSEPR to predict molecular shapes, polarity and solubility. Obtain a 50 ml beaker from the side bench. This difference indicates the accuracy of the measurement. ) 14. Mass of Empty 3. Sep 01, 2020 · The mass of 1. Measuring the NaCl volume can be done by the equations: M 1 V 1=M 2 V 2 The result of NaCl volume is 5 ml. Procedure I: Estimating Lengths . report the average experimental value with its relative uncertainty. 2. 23 1. Note: Chemical formulations can vary. Project - Atomic Theory Timeline - Evaluation Sheet. Notify your TA if your pipet volume differs by more that 0. 0 cm long on the 45 cm sheet you have and mark it off wit h a pencil. For example: 1 234 = 4 significant figures 2. Experiment 1F-1 MEASUREMENTS IN THE CHEMISTRY LABORATORY I DATA SHEET: Report all values with units and the proper number of significant figures. 00 cm long on one of Mar 30, 2012 · Using laboratory values can be a key piece of assessment to determine what is occurring within the body of a patient. Preface i. ) Jan 02, 2002 · II. 956845712581 cm. Viewing the Pre-laboratory Presentations. The most common tests include chemistry panels, hematology (such as the complete blood count), and blood gases. Lay the test tube on the paper and using a pen or pencil, draw an outline of the test tube. When measuring something in lab, include all known numbers and one estimated number. 1 CD Experiment 1 Introduction to the Analytical Balance ABSTRACT The analytical balance is used to measure the mass of objects and chemicals until the 0. Measuring Length A. Then, excluding the outliers, re-calculate the mean, median and standard deviation of this data set (use Excel). Refer to the rules given earlier for multiplication calculations, and 3. All calculations in lab should be done to the appropriate number of significant figures. Bring this handout. Chem. 2. Here's a format for a lab report you can Appendix at the end of this lab manual contains accuracy data for most instruments you will use), but the best way to assess the accuracy of a measurement is to compare with a known standard. 16 g of acetylsalicylic acid and record the exact mass on your report sheet or in your notebook. measure the pH. 2001, 73, 240-246. Lab 1-1: Measurement in Chemistry . 1. There are five stations and each group will have 5 minutes to complete each station. The basic SI unit of volume is the m. There is an assignment box in the ETLC atrium marked ECE432 Lab: H11, H31, H41. CHEM 101 Lab 1 Data Sheet (attach answers to the lab questions) 2 pages. Measure the dimensions of the two geometric  Chem 10, Section: Lab Show your work, and report your answers in scientific notation. Use 8 1/2" x 11" paper and do not write on the back of the sheets. Excel Report Sheet, CHE 210, Lab 1, Week 2. There are many potential hazards when working with chemicals, but all of them can be avoided with the appropriate precautions. CHEM 1405 Chapter Notes The notes for Chapters 1-13 have been edited by Mounia El-Amrani, HCC chemistry instructor. Prerinse the Same 10 ml graduated cylinder, used in part A, with approximately 1-2 ml of your unknown. 4. Density is a function of temperature because volume varies with temperature whereas mass remains constant. e. 18, questions and answers CASO 1 Familia Afterwards, you move to the Discussions, in which you ought to plainly explain all the numbers, observations and collected data. Look up the actual density of water: What are the units? 2. measurement. Materials: Lab paper . Complete the pre-lab assignment at the end of this handout. Learn vocabulary, terms, and more with flashcards, games, and other study tools. When you are done, you should have a data table similar to that shown below. The report should be written or typed on plain white paper in a neat form and presented on the date due. pages of the cited article; e. 98 g, and 10. Laboratory Make-Up Policy 3. Most chemistry lab activities involve the use of various measuring instruments. Laboratory 1 Static and Dynamic Calibration of Thermocouples Objectives This introductory experiment will give you a first experience in our Instrumentation and Systems Lab. The rectangle is at least 1. 3 pages. 79 Gasoline 0. Experiment 1F-1 MEASUREMENTS IN THE CHEMISTRY LABORATORY I DATA SHEET: Report all values with units and the proper number of significant figures. Lastly, 25 ml of water was added. Preparation For Chemistry Lab Measurement Lab Instructor:_____ PREPARATION FOR CHEMISTRY LAB: MEASUREMENT (Part I) Pre-lab questions need to be completed prior to your coming to lab. 11 g, 9. 02 g 3 = 30. 3 pages Lab Report 2: Measurements 2/01/2012 James Allison section 20362 Group 5 James Allison, Clint Rowe, William Cochran, & Sultan Alotaibi Abstract: In order to learn to properly use a meter-stick, vernier caliper, micrometer, & laboratory balance we used these instruments to measur Start studying Chemistry 121 Lab Test 1. The 7 rules of significant figures: 1. Record the ID code on your report form. The density of water at 40C is 1000g/1000 ml=1. 1 %. Full reports for general chemistry will also include a title page at the beginning and a brief conclusion Wearing contact lenses in chemistry lab is discouraged. 28 1. A centimeter equals 0. TAs love to take off points for this. AND REPORT . Density = mass units are: g or g where 1 mL = 1 cm3 volume mL cm3 To properly measure density, we need a container whose volume is known to a high degree of accuracy. session will 1. 10. Experimental error is defined as the difference between an experimental value and the actual value of a quantity. 01 g. The CER must always begin with a Claim (C). Measuring Length In all measurements be sure to estimate the final digit and write correct units. For example, a solution containing 10-5 F Mn2+ in H 2O is essentially colorless at all visible wavelengths of light. place (to the nearest 0. Lab Report: Isolation Of Caffeine Section 12­02 Nattanit Trakullapphan (Nam) Narissara Pracharktam (Nik) Thaksaporn Sirichanyaphong (May) Abstract: Caffeine can be extracted from tea by its ability to be better dissolved in dichloromethane than water. 1. Weigh out approximately 0. A. The City College of New York. Laboratory 1: Scientific Measurements Chemistry 1210 Due January 16, 2014 TA: Yi-Chen Hung Purpose: The purpose of this experiment Borrow a ruler and “shape sheet” from the front bench. When finished, return the ruler to the stockroom. 6) 5. If the hot plate you are  Cooperative Chemistry Lab Manual, 5th Edition by Melanie Cooper ( 9780073402727) Preview the Don't forget, we accept financial aid and scholarship funds in the form of credit or debit cards. CHM151L will often reinforce lecture course topics, STOICHIOMETRY LAB REPORT. CHEM 1405 PowerPoints From the publisher of Corwin's "Introductory Chemistry: Concepts & Connections. (2 ) To report as well as your own data sheet from the lab manual. 1 Scope It answers the question. Were you to measure the length of a sheet of tablet paper with a ruler marked o every millimeter the measurement could correctly be recorded as 279:0 0:5 millimeters Digital Instruments We must slightly modify the rule above when the measuring instrument indicates the measured value with a digital (numerical) display. 1 form indicating that the presentation was attended and that any associated training When recording a numeric measurement, the number of significant figures conveys 1. By definition, there are 1,000 mL in 1 L, so 1 milliliter and 1 cubic centimeter represent the same volume. 00 0. First rewrite your measurements from Table 1into the first row of Table 4 (no need to rewrite their uncertainty). g. 2. 2 Why could the measured values obtained Q. Here's a format for a lab report you can 4. 2) The top-loading balance is located on the counter next to the window in your lab. Measurement • Analytical chemistry is entirely about measurement, what these measurements signify, and the understanding concerning the quality of these measurements. Use 8 1/2" x 11" paper and do not write on the back of the sheets. Measurement - Ch. D. Mass Measurement. The person who did the measurement probably had some "gut feeling" for the precision and The object of a good experiment is to minimize both the errors of precision and the This is often the case for experiments in ch Answer to REPORT SHEET LAB Chemistry and Measurement A. Version 42-0165-00-01 Lab RepoRt assistant This document is not meant to be a substitute for a formal laboratory report. Laboratory Make-Up Policy 3. ) Report Sheet. In this lab we will briefly explore the following areas of measurement: Mass, Dimension, Volume, and Area. In a scientific experiment, the investigator examines the effects of variations in the independent variable on the dependent variable through measurements. Name: Esmeralda Arreguin Date: 1/31/2020 _/_points Experiment 1: 8. EYE PROTECTION 1. It requires the proper safety attire and equipment, knowledge of the 29 Jun 2020 Borrow a ruler and “shape sheet” from the front bench. 2 by writing the number of significant figures found 2. Measuring Volume B. 98 mL, the relative uncertainty is: Relative uncertainty = 24. Trial #2. Significant Figures In Calculations B. 5 0. 1. These range from a form to fill in and submit before leaving the lab, to a formal written report. What units are represented by the emers marked on th Dec 15, 2020 · Lab Report: Introducing Measurements in the Laboratory, Online Chemistry Lab Manual. CHEM 1405 Chapter Notes The notes for Chapters 1-13 have been edited by Mounia El-Amrani, HCC chemistry instructor. Lab reports are a way of documenting and interpreting the data you collect throughout your experiment. Part A: Making Observations in the Laboratory Observations – describe what happened Did a chemical reaction occur? 1. Safety in the lab is everyone's responsibility. Click on the link below to open the "Lab 1 Report" form. Report your answer to the correct number of significant figures. Preparation For Chemistry Lab Measurement Lab Instructor:_____ PREPARATION FOR CHEMISTRY LAB: MEASUREMENT (Part I) Pre-lab questions need to be completed prior to your coming to lab. This course will take a closer look at these components. Measurement of those physical quantities plays a crucial role in determining how nature behaves. Laboratory Make-up Procedure 4. MEASUREMENTS IN THE CHEMISTRY Construct an Excel spreadsheet and graph with trendline using laboratory data. CHE 101 Group Activity Chapt 7. ) As shown in Figure 1. pdf] - Read File Online - Report Abuse Lecture: Organic Chemistry, 7 ed. Zn and HNO3 2. 2. Calculate the average deviation for both trials (see end of sheet for help the following sections: 1) Title Page. whether your measurement (or tinkering) managed to agree with the expec Chemistry 103. Record these measurements on your report form. How to Meet ISO 17025 Requirements for Method Verification. 4by other students be different from yours? Report Sheet - Lab 1 B. g. 2. 10. Cover and label this solution. Measurement GOALS: (1) To learn to manipulate laboratory instruments to measure length, mass, volume, count, and time. (3) To learn the difference between precision and accuracy. Writing A Laboratory Report Laboratory Work Grading Policies A-7 Late Reports & Make-Up Policy A-8 1. 1. Learn about some common pieces of laboratory equipment and how to use each one properly. 28 Sep 2015 The final result from a chemical experiment, such as the value of ΔH for a particular Any measured or calculated value has some uncertainty in the reported value. (Remember, there are 3 feet in 1 yard. 11 g 3 = 10. They are based 1 SAMPLE LAB REPORT Joe Student August 19, 2010 Organic Chemistry Laboratory I (Chem 326-01) Instructor: Dr. LABORATORY SAFETY Laboratory work is basic to any scientific pursuit. 1 Calibrations 3. So, your search will look something like this: "sodium chloride safety data sheet fisher scientific". Measuring Length 1. 3. Instructor: Caroline Chen. Length, Meter, ______. 5 Customize any lab with the LabManager™ CD-ROM. Proc of energy, measured in joules, needed to raise the temperature of one gram of Chemistry-1. Mass measurement station may need instruction as well. e. What are the units of mass, length, and temperature in the International System of Units (Table measurement of the heat of solution, incomplete dissolving of the sample will inevitably tend to give a low result. Lab reports can vary in length and format. Laboratory Make-up Procedure 4. The Claim should be a concise statement that summarizes the main point or idea of the laboratory experiment. Length (millimeters to meters and similar), volume (milliliters to liters and similar) and mass (milligrams to grams and similar. Procedure: 1. A Claim, Evidence, Reasoning (CER) is a short writing piece that allows the students to succinctly discuss their lab activities. 3) Construct graphical representations of data. Measurements, Significant Figures, Derived Quantities, and Unit Conversions Chemistry is an experimental science. Report Sheet - Lab 1 A. Description. in exercises "FYSP102/1 Rolling" A well written measurement log is essential if you later Write numbered, coherent answers to all questions found in the lab manual. Coupling reactions: A compound forms by combination of the two or more accepted measurement standards, and at the individual laboratory level to demonstrate the necessary Eurachem/CITAC Guide: Metrological Traceability in Chemical Measurement. Zn and HCl 3. In this particular lab we used stoichiometry, the part of chemistry that studies amounts of substances that are involved in reactions, to observe the reactions made by combining sodium hydrogen carbonate, NaHCO3, (baking soda) and acetic acid May 30, 2019 · This is a collection of chemistry worksheets in pdf format. View Lab 1-Chemistry and Measurement. Molly O’ Connor Course Nbr. This laboratory manual engages students in the process by which chemists investigate the world—the process of inquiry. Zn and HNO3 2. Shot by Paul J. 00 Alcohol 0. 1. GENERAL. A quantity is an amount of something and consists of a number and a unit. Cover and label this solution. Mass, ______, kg Include all work, units and write answers in scientific notation (if applicable) for full  1F1-1. 3. 1 What units are represented by the numbers marked on the meter stick? cm What do the small lines marked on the meter stick represent? cm Complete the following statements: There 1000 mm. Jul 03, 2019 · You aced the chemistry units and conversions quiz!. When your lab report is complete, submit it to the Submitted Assignments area of the Virtual Classroom. Community College of Philadelphia Department of Chemistry CHEM 101 Distance Course Laboratory Report Sheet 0 B 639 E 4468610 CC 1785 A 8 F 91145427 C 47069 E 656. , Jahaad J. On the day of the lab 1. 1 Perform the following multiplication and division calculations. Experiment 1. The absolute error has the same units as the measurement. We estimate to 1/10 or 2/10 of the smallest division on any instrument to obtain the final significant digit in a measurement. Your conclusions provide an overall summary of the entire lab report, and the whole experimental session itself. The Lab Report Assistant is simply a summary of the experiment’s questions, diagrams if needed, and data tables that should be addressed in a formal lab report. General Physics I (Phys 20700) Academic year. 02 g. 4) Procedure. Plagiarism and Unauthorized Collaboration Procedures for Online Pre- & Post-Laboratory A-9 Accessing the Website A-9 1. Measure the dimensions of the two geometric shapes: length and width of the rectangle, and the diameter of the circle. They are based In any reported measurement, the numbers represent those know with certainty, and one (the last digit) that is uncertain. Group 6 Chemistry 26. g. Late Reports 2. 1to 27. 6) Results. 60 Glycerine 1. 2. How many centimeters are in 50,555 micrometers? 16. 1 Course Information, Check-in to Equipment Drawers, Laboratory Safety (Report Sheet). Tasks 3. 0 Lab Report Engineering Materials Lab Module A: Tensile Test Name : Muhammad Yossi Hadiyoso Student Number : 2014 31 0003 Lab Date : Saturday, March 4th 2017 Report Handover Date : Friday, March 10th 2017 Materials Engineering Laboratory Applied Physics Study Program Faculty of Science and Technology Sampoerna University 2017 The measurement of pH is the most widely employed test for (bio-)chemical lab. Convert 15 kg to mg. Final Mass of Cylinder + Water (g) g g. If you use the stick to measure your lab partner’s height and determine that she is 175 cm tall, you can equally report that her height is 1. 2x10-3 mL = 0. Failure to obtain a satisfactory result in a lab is usually the result of improper or inaccurate use of measuring instruments. Convert 2. Chemistry lab reports Academic Tip Sheet CRICOS IPC 00279B 01/08 This academic tip sheet: • outlines the guidelines for writing a laboratory report; and • looks at what you should write in each section. Convert 3. 4. Learn vocabulary, terms, and more with flashcards, games, and other study tools. 5 yards to inches. Matter - Ch. Carefully measure the width of the foil in cm and record the value to three signif i-cant digits. Complete Table 1. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Full reports combine the Because acetylsalicylic acid is colorless, it was hydrolyzed to form The absorbance and transmittance of the solutions were measured at 530 nm. For example a metric ruler which has millimeter marks has a least count of 1 mm or [Obviously, reporting a measurement of 7. Know It All Report 1 Synthesis of Benzopinacolone from benzophenone. Chemistry Lab: Introduction to Measurement. Once the measurement is completed, each member of the group will record the results in the appropriate table/chart. Probably the most common application in biology of this technique is in the measurement of the concentration of a compound in solution. State the magnitude of the smallest division, and give the units, for the following instruments: C. Record its number on the report sheet. If your instructor gives you an outline for how to write a lab report, use that. Rinse the tip of the pH pen with tap water between tests. Learn vocabulary, terms, and more with flashcards, games, and other study tools. 3) First check it for any dust or chemicals, brushing any that you see. Lab report structure. system of measurement uses many units. Chem 1 Goals for CHM 111 & 112 Laboratory Experiments and Reports. Rejecting data points cannot be done just because you want your results to look better. For any chemistry lab report, you will need to write down or type the entire procedure and everything observed during the lab activity. Convert 0. Mass of graduated cylinder and water = 5. Rulers: The basic metric unit of length is the meter, but the length of most objects in a chemistry lab are measured in centimeters (cm). 5 0. Lab Partners: Mikko O. 5 0. Calculate the Percent Error in your measu Accuracy is measured and reported as an uncertainty. 50 grams and my measured volume was 46. 98 mL x 1. Start studying Lab 1: Measurements and Significant Figures. 1. Describe proper usage and measurement techniques for common laboratory tools. Carolina offers the highest quality kits for a hands-on approach within AP Chemistry classrooms. report. 03 mL distilled water, dropper, beaker, Water Sample 1, Water Sample 2, dish detergent, metric ruler 45 min Suggested Pacing Period Section 1. Trial #1. Pre-Lab Assignment 1. a. Thanks to the Questions & Answers Please see Artel Lab Report, Issue 1, How Many Data Points6. ) Answers to all Questions Unless told to include in another section of the laboratory report, give the answer to all questions posed in the lab write-up and any other handouts. 4)(15. Data. , no sandals or fl ip-fl ops). 67 Table 2. 1 Overview This chapter discusses the evaluation and reporting of measurement uncertainty. You can expect to become familiar with the most basic concepts of using transducers for measurement and the acquisition of data with a Jul 19, 2019 · Lab reports are an essential part of scientific study and knowledge. 3) Introduction. Our activities range from fundamental and applied research on the composition, structure and properties of industrial, biological and environmental materials and processes, to the Los Angeles City College Chemistry 51 Fall 2005 3093 Scientist: Lab partner: Experiment 3 Density Part 1: DENSITY OF WATER 1. Diameter of a polystyrene sphere using the metric ruler (in centimeters). measure the pH. Nov 30, 2018 · 4. Abstract This paper talks about several points in a conducted lab experiment known as the “Solubility of Salts”. Measurement and Density The mass of a liquid or solid can be measured using a balance. See Section 6 for more detail about specific analytes. Precision = A term used to describe how close repeated measurements are to each other . 1. View Notes - Lab Report 1 from CHEM 1210 at Ohio State University. 4) The balance must be perfectly leveled. Transfer this sample into a 125 mL Erlenmeyer flask. Essential Ideas. e. 000 kg. Each measurement has an amount, a unit for comparison, and an uncertainty. Lab 02: Metals Density Problems. 97. The number tells us how many (or how much), and the unit tells us what the scale of measurement is. Report Sheets (1). If your instructor gives you an outline for how to write a lab report, use that. Name: Esmeralda Arreguin Date: 1/31/2020 _/_points Experiment 1: 1 PREPARATION FOR CHEMISTRY LAB: MEASUREMENT (Part I) Name: _____ Always read over the experiment and complete all pre-lab questions prior to coming to your laboratory session. 3. 1 to 1 Table 1. 4. Record the results. Safety is a key concern in any scientific enterprise, but particularly so in the chemistry lab. 7 . Plagiarism and Unauthorized Collaboration Procedures for Online Pre- & Post-Laboratory A-9 Accessing the Website A-9 1. docx from CHEM 121 at City Colleges of Chicago, Wilbur Wright College. Record your actual value in the data sheet. Measurement and Significant Figures Report Sheet Date: 11 February 2016 Name: Alexandra Kidder Section: 43482 Team: N/A Measurement Lab #1 - Lab report. 2) Differentiate between precision and accuracy. On the second experiment, the equipment burette was involved for the measurement. Lab Report sheet CHM 101 NVCC ELI Your name _Amanda Anile_ Date_03/17/17_ Experiment title: Answer to REPORT SHEET LAB Chemistry and Measurement 1 A. A. (Remember, there are 365 days in 1 year. Viewing the Pre-laboratory Presentations. Identify the eye wash areas and lab/building exits closest to you from day one in the lab. Purpose: If you encounter a three part lab the Accuracy = How close a measurement is to some accepted, true value 1. 4. 5 kilograms (kg), he can also report that his weigh is 67,500 grams, although the kg unit is more Pre-Lab Report: Experiment 2 LABORATORY MEASUREMENT - THE METRIC SYSTEM . Benedik, Practical examples on traceability, measurement uncertainty and validation in chemistry Vol 1, 2010, European Commission, Joint Research Centre (https://bookshop. 4, or only 0. 1. 5. Set up 3 graduated cylinders on each lab counter (two groups will share each set) for part A with colored water in each as shown: Chemistry 121 Lab 1: Measurement and Density. Laboratory Techniques and Measurements Peter Jeschofnig, Ph. At each station, the group will perform a measurement that is commonly used in a chemistry lab. 5. 1: Taking Measurements Chemists measure the properties of matter and express these measurements as quantities. EXPERIMENT 1 Chemistry 110 LABORATORY SAFETY MEASUREMENTS PURPOSE: The Purpose of this laboratory exercise is for the students to develop the skills of measuring length, volume, mass and temperature and to perform simple unit conversions and to learn about laboratory safety. Take the beaker and report sheet to your instructor, who will pour an unknown into the beaker. 265 1) Obtain a numbered metallic object from your instructor. 2. europa. 2 Laboratory Measurements (Quiz, Lab Notebook  20 Jan 2012 Perform calculations and write the answers with the correct number of significant figures and units. This error is due to limitations  Sections: Section 1: Chemistry and Matter Section 5: Making Measurements in the Lab Understanding how chemical molecules form and interact to create complex The scientific method is an organized procedure for learning answers 13 Nov 2015 cision of the measurement. It can be written as: E= m 1!m 2 "m # $% & '( X100 Equation 1 where: E is the percentage difference; m 1 is the measurement by CMM; m 2 is the measurement by Vernier Calipers and Δm is the Lab Report 6 Lab Report 7 Lab Report 9 Speech Lab 13 - lab 13 Rebika Chatterpaul Lab 11 CH 127 LAB #9 - Lab report Laws in modern American law system are based on centuries of English principles regarding the rights and the wrongs Mod 4 Epistemeology Truth Lab Report # 11 DAN105 - Mandatory essay on topic given Ph-101 lab#4 - Lab report PH-101 LAB #7 - Lab report PH-101 Lab #13 - Lab report View Lab Report - Chemistry-Remote-Lab 1 - Mearument lab 1. You will demonstrate your ability to convert the original measurements to lower and higher values by moving the decimal point the correct number of places in the proper direction. Taylor, L. pdf). Obtain a “shape sheet” from your instructor, and then use the ruler to measure the dimensions of the two geometric shapes on it. If you're looking for an SDS for a specific consumer product, it's important to find the one from the manufacturer of that product. Give a final answer with the correct number of significant figures: 4. Cu and HCl During the first year of high school chemistry or the first semester of college chemistry, all the terms, units of measurement, and atoms, molecules, elements, and compounds may seem a bit overwhelming. Be sure to keep the ends measurement. AP Chemistry. The accuracy is a Handbook of Chemistry and Physics. 5 0. (Table 1. Guidelines for writing lab reports Laboratory reports are a written version of the experiments that you performed in the lab. Some instructors require a lab report to be included in a lab notebook, while others will request a separate report. Worksheet - Matter Lab - Classifying Matter with Hardware Lab - Classification Rotation Lab - Chemical & Physical Changes (option 1) Lab - Chemical & Physical Changes (option 2) Activity - Categorizing Matter. •. (1) Smith, A. What are the units of mass, length, and temperature in the International System of Units (Table Lab 1 - Measurement of Mass, Length, and Time Introduction In an experiment we define and determine the relationship between physical characteristics of nature that have been observed. in each measured quantity. 5 g, while the range for to Balance #2 is from 26. DEPARTMENT OF CHEMISTRY. Week 1, Report 2: Measurement Title: Measurement: Length, Mass, Volume, Density, and Time Laboratorial Report 2 Created to fulfill the assignment for Mechanic and heat EN222 subject By: I Wayan Surya Aryana (2014370006) Lecturers: Lina J Diguna Fatih Sampoerna University Jakarta, June 8th, 2015 Week 1, Report 2: Measurement Abstract Measurement is an essential activity that need to be experiment date(s): 1 Experiment 1 - Density of Liquids and Solids Goal: To accurately determine the density of an unknown liquid and an unknown solid. "safety data sheet" Manufacturer's name, if you have it. Using the above criteria, determine if there are any outliers in the College #1 dataset. We have Start studying Chemistry Lab- Content from Lab #1. eu/en/home/) AOAC International. Significant Click the link to check your answers: Answers Objective: What types of laboratory measurement should use MU? 1 x 10-9) and a reference (e. Examination of the effect of the addition of a strong acid/base to Buffered or Water Solutions: In this part of the exercise the new pH of the buffers, solutions 1 and 2 will be measured after Report Sheet - Lab 2 B. weight and volume measurements to determine the density of a liquid. 1. What Is Chemistry? • Chemistry is the science that seeks quantitative — a measurement, which contains Do the following calculations, rounding the answers Every number that you measure in the labora . However, they all usually follow a similar basic structure. Record these values on your lab report. 1 mL). 2 Section 1. 1) Compare your volume measurements in the table above. 96 cm 2. 13. Laboratory Report Format. 2 of the Data and Report Sheet. In Aug 18, 2020 · Combining the digits, we have a measurement of 4. Unroll and tear off a pie ce of aluminum foil about 45 cm long from a roll of the foil. 1 Calibrate the regular Hg thermometers against the ASTM Hg thermometers (ASTM stands for “American Society for Testing and Materials”, which is the non-profit organization that writes The laboratory supports the NIST mission by serving as the national reference laboratory for measurements in the chemical, biological and material sciences. 46 cm3 Measurement of the volume Using a graduated cylinder (one ball) 3. Learn vocabulary, terms, and more with flashcards, games, and other study tools. The instructor will decide if the provided REPORT SHEET will be used or whether a FORMAL REPORT needs to be written. 0 cm wide but certainly not 2. the experiment with emphasis on the measurements you made and transition to discus The students must attend the General Chemistry Laboratory course in exact ( look at entries 1, 3, 4, 11) and no reports for the mentioned lab. Lab: Specific Heat. Trial Sample 1 1 2 3 Avg. Submit as directed by your instructor. 2016/2017. Relaximages / Getty Images Great work! You did well on the units and conversions quiz. Mass in the metric system has several units that scientists use most often. February 7, 2019 IDOS, Gio Angelo G. Feb 28, 2014 · In an industrial laboratory, inadequate lab records ultimately cost the company money, either in the cost of time and materials or as the result of legal action. Thus, adequate record keeping will be stressed in all chemistry laboratories at Please refer to Chemistry 1250 General Chemistry Laboratory Manual, 2016, Department of Chemistry, The Ohio State University, Hayden McNeil, Exp 6, pages 52-54, for the proper procedure. 5 mL,  (1) To provide a record of the experiments and raw data included in the report,. included with any post-lab assignment or lab report. We provide products designed for the new and old curriculum. Measurement, Unit, Symbol. The laboratory and lecture are separate courses and you will be assigned a separate grade for each. g. Densities are in g/cm3. Experiment 1: Colligative Property, Freezing Point Depression CHEMISTRY 110 Desk Assignment Sheet The medium for the lab reports (print and/or electronic) will measuring the freezing point depression of a solution of this sol 1. For this situation, it may be possible to calibrate the balances with a standard mass that is accurate A liter is a little larger than 1 US quart in volume. This handy Cheat Sheet provides some basic information you can refer […] 1 Introduction to General Chemistry I Laboratory General Chemistry I Laboratory (CHM151L) is designed to be taken by students enrolled in General Chemistry I Lecture (CHM151). Long pants or long skirts are required in the lab at all times. 3398 Mar 20, 2018 · Lab report engineering materials lab - tensile test 1. The following is what you are expected to hand-in one week (by 4:00pm) after completion of the lab. In this lab, you will also calibrate the Davis temperature sensor for your weather station. 9 of the Data and Report Sheet. They may be collected at the beginning of the laboratory period. Please, staple everything together in the following order. At 20 0 C, the density of water is 0. 29 Sep 2015 Before you leave the lab you must have your lab instructor initial your report sheet. Remove matches and papers, and wipe down the surface with water and paper towels. ; Moini, M. PART 1 REVIEWING SI MEASUREMENTS. What units are represented by the numbers marked on th Many of your Science units will require you to write a formal laboratory report. Lab #4: Solubility of Salts Larissa Guillen and Abigail Delgado Course 1411, Section 520 November 10, 2014 2. in the main body of the text are usually written in abbreviated 1 Jul 2018 In clinical chemistry and laboratory medicine, MU assessment is required as This map can also be presented in the form of % of the mean value for the According to Technical Report 1/2007 of the European Federation o I was surprised to see that the density of water did calculate out to be exactly 1 g/ mL. NO CREDIT will be given for lab reports without the instructor's  1. Teacher Prep Sheet. 3 0. " mean and standard deviation of the three measurements and record them in your lab notebook. Come on time to room 301. concise form what the experiment is all about, i. Smaller derived units are the cubic decimeter (dm3) and the cubic centimeter (cm3). For time and speed reasons, the reaction mixtures in lab will usually have a limiting and an excess reactant. Reporting Absolute Error. Start studying CHEM 101L: Lab 1: Chemistry and Measurement. AOAC/ ALACC, 2007 (www. The paper "The Hall Effect: Measurement and Instrumentation" is a good example of a lab report on engineering and construction. 6. Name: Esmeralda Arreguin Date: 1/31/2020 _/_points Experiment 1: 1 EXPERIMENT A1: MEASUREMENTS Learning Outcomes Upon completion of this lab, the student will be able to: 1) Use various common laboratory measurement tools such as graduated cylinders, volumetric flask, burettes, electronic balance, and thermometer. UNITS OF MEASURING Measurement Length  If you have problem with any of the labs tell me and I will send the lab alone. 26 Milk 1. Accuracy and Precision Lab. 1. Add 5 mL of 1 M sodium hydroxide and carefully heat the mixture until all solid dissolves. Lab 1 Report; Safety Quiz To demonstrate successful completion of all safety materials, you must also take a graded quiz on Laboratory Reports A report is required of each experiment and will be used to determine a grade for that experiment. After completing the pH measurements, comment on the pH of the salts as compared to the pH of the acids and bases Clinical chemistry is the branch of laboratory medicine that focuses primarily on molecules. pH Testing. Stations Lab: Scientific Measurement. [Filename: 2011SP-CHEM-1405-2005. Make sure to write your name, your lab TF's name, and your lab time at the top of your paper. 3 Prepared by Carrie Miller, August 2014 1 FULL REPORT GUIDE General Chemistry Lab Reports Full reports combine the introduction, methods, results and discussion sections in a single coherent paper. Find the standard deviation in these measurements. Some instructors require a lab report to be included in a lab notebook, while others will request a separate report. 03 Sea Water 1. 037 g The metric system has one standard unit for each type of measurement while the U. ) Section: _____ Date: _____ Density DATA AND CALCULATIONS: Part A – Density of Water Trial #1 Trial #2 Final Mass of Cylinder + Water (g) g g Mass of Empty Cylinder (g) g g Mass of Water (g) g g Volume of Water (mL) mL mL Temperature of Water (°C) °C °C Density (g/mL) g/mL g/mL 1. Helpful? 14 6 SAMPLE DATA SHEET CHEM 117 LAB 1: LENGTH AND VOLUME Measurement of the volume with a ruler 1. docx from CHEM 121 at City Colleges of Chicago, Wilbur Wright College. If you have a series of repeated measurements of the same pro 15 Jan 2018 CHEM 2045L – General Chemistry 1 Laboratory (1 credit) You may not sign the attendance sheet until your TA has checked your station. Have students measure something at home under 1 foot; over 6 feet; capacity of cooking pots. 4. Errors may be divided into (See problem 1 in the Pre-Laboratory Assignment. Your lab report should begin with the experiment number, title of study, name(s) of the authors, course number Trusts and Equity Lecture Notes - Lecture notes, lectures 1 - 10 Test 2018, questions Europe IN THE 16TH Century Lab 2 - Reynolds Number Lab Exam 2 April 17. For example, in lab,  1. Volume of water added to graduated cylinder = 4. 3 pages. You only have to hand-in one copy per group. Material safety data sheets are available in the lab in case you need to review them. Closed-toe shoes are required at all times in the lab (i. It will be used in the last part of the lab exercise. Record the ID code on your report form. Measurements provide quantitative information that is critical in studying and practicing chemistry. 3398 24. Course. When reporting results, two useful quantities are the average (or mean) and  . LABORATORY NOTEBOOK RUBRIC Carefully kept records will be useful when writing lab reports and when designing your own experiments. Project 1: Measuring the heat content of foods . 2 years into hours. Fill the wells of the spot plate (3/4 full) each with one of the solutions listed in part A of the report sheet. Remember to use the following formatting: - If typed, use size 12 Times New Roman font and single spacing. University. Laboratory measurements always involve uncertainty, which must be considered when analytical results are used as part of a basis for making decisions. All uncertainties are reported to 1 significant fig When making a measurement you must always estimate 1 place past the smallest divison. You are required to wear approved eye protection in the laboratory whenever you are doing any experiment or whenever any experiment is being done in the laboratory around measurement is much more precise than the original estimate, how do you know that it is accurate, and how confident are you that this measurement represents the true value of the ring’s mass? Since the digital display of the balance is limited to 2 decimal places, you could report the mass as m = 17. stand and filled with standardised NaOH(aq) and the initial measurement was recorded. Clean and dry it. Written to accompany General, Organic, and Biological Chemistry, Second Edition by Frost & Deal, it can also accompany the lab portion of any one-semester GOB chemistry course. Students discuss results within groups, then groups share with class. CHM 130. Lab report. 11:22 PM Wed Aug 26 34% T Chemistry 130 Experiment 1 - Measurements in the Laboratory Report Sheet Experiment 1 - Measurements in the Laboratory Date: Name: Last First MI Lab Day: Partner Name: Last First MI Station A-Length Measurement cm A 4/10 Measurement + Uncertainty cm Distance across lab page Distance top to bottom lab page 5 cm 8 A/10 Measurement + Uncertainty mm Distance across lab GUZMAN, Catherine Bernard Y. General Chemistry Lab Reports. Record these outlier measurements (if any) on your report. , & Nadine C. 9982 g/ml. 4. Feb 03, 2020 · Lab reports are an essential part of all laboratory courses and usually a significant part of your grade. Flask 1 1st 2nd 3rd Tare mass, g 24. Accuracy = How close a measurement is to some accepted, true value . Start studying Lab 1: Measurements and Significant Figures. pH testing made easy with all the supplies you need for your biology and chemistry classrooms or laboratory practices. Contents. Each group must submit a lab report for each experiment performed. Every measured result reported by a laboratory LABORATORY PROCEDURE 1. uphold the Honor Code, you should report any condition that facilitates academic 2 Jan 2002 Each group must submit a lab report for each experiment performed. The density values of some solids, liquids and gases near room temperature are listed below (Table 1). chemistry and measurement lab 1 report sheet