Partner(s) NONE USE OF THE ANALYTICAL BALANCE
|
|
|
- Barry Bates
- 5 years ago
- Views:
Transcription
1 Name Partner(s) NONE Section Date USE OF THE ANALYTICAL BALANCE 1. What is mass? How is it determined? PRE-LAB QUERIES 2. How are mass and volume of a substance related? OBJECT This activity introduces you to the use of the analytical balance, an instrument that allows you to determine the mass of objects to g or 0.1 mg. PROCEDURE A. Determination of the mass of two objects (crucible and cover) individually and together 1. Mass each object individually three separate times on one analytical balance. Record the masses in the data table. 2. Mass both objects together three separate times on the same balance. Record the masses in the data table. 3. Calculate the sum of the masses of the two objects and record the result in the results table Compare the results of the sum of the two objects to the mass of them together; they should agree to within 0.3 mg. The replicate mass determinations of any object should also agree within this limit. One means to check this replication is by calculating the range, which is the difference between the high and low values. The range should be no larger than 0.3 mg. Repeat the massings two more times if needed to replicate the mass within the prescribed limit. 5
2 B. Determination of the volume of a drop. 1. Mass a 10 ml beaker. 2. Place water in a clean buret making sure there is no air in the tip. Record the initial volume of the water in the data table. Deliver exactly 50 drops of water from the buret into the pre-massed beaker. Record the final volume of the water in the buret. 3. Mass the beaker with the water. 4. Measure the temperature of the water. 5. Calculate the mass and volume of one drop of water and record the values in the results table. 6. You can calculate the volume of a drop in another way using the specific volume (V s ) (the volume occupied by one gram of water corrected for buoyancy of air) Using the mass of a drop of water and table below, calculate the volume of a drop of water using the following formula: V drop (ml) = M drop (g) x V s (ml/g) Temperature ( o C) Specific Volume (ml/g)
3 C. Mass of a fingerprint 1. Clean a watch glass with a kimwipe or microwipe. 2. Using a piece of paper or tongs, mass the watch glass. 3. Now touch the watch glass with your finger ten to twenty times, each time touching a clean part of the watch glass. Be sure to record the number of times you touch the glass. 4. Remass the watch glass after fingerprinting. 5. Calculate the mass of your fingerprint. D. Determining balance accuracy using a standard mass 1. Obtain an object of standard mass from your instructor. DO NOT TOUCH the mass with your fingers because substances in your finger oils may react with the object and modify its mass! Mass it three times on the analytical balance and record the masses in the appropriate data table. 2. Calculate the percentage error in your average mass using the formula below. experimental mass (average) - theoretical mass % error = x 100 theoretical mass The theoretical mass is the mass of the standard. For this lab, if the object is marked with a 10, the mass is g. 7
4 AND A. Determination of the mass of two objects (crucible and cover) individually and together Trial Object 1 Object 2 Objects 1 and 2 Massed Together Sum of Object 1 and Object 2 Difference (mass sum - mass together) Average Range B. Determination of the volume of a drop. Mass of 10 ml beaker Mass of 10 ml beaker and water Volume reading on buret before dispensing water Volume reading on buret after dispensing water Number of drops Temperature of water Mass of water Volume of water Mass of 1 drop Volume of 1 drop (from buret readings) Volume of drop (from V s calculation) 8
5 How do the results for the volume of a drop compare for the two methods used? C. Mass of a fingerprint Mass of watch glass Mass of watch glass and fingerprints Number of fingerprints Mass of fingerprints Mass of 1 fingerprint Do your fingerprints contribute mass when determining the mass of an object to the nearest 0.1 mg? Explain. D. Determining balance accuracy using a standard mass Mass of standard - trial 1 Mass of standard - trial 2 Mass of standard - trial 3 Average mass % error 9
6 CONCLUSIONS How do your results from the volume of a drop and single fingerprint mass (parts B and C) compare to three other students in the laboratory? Make sure you can support your statements! The percentage error allows you to access the accuracy or closeness to true value. It assumes we have a standard with a known mass. How does your balance error compare to three other students? POST-LABORATORY QUESTIONS 1. Explain the difference between data and results. 2. The percent error can be positive or negative. Explain what the sign of the error tells you about the error. 3. Why is it important not to touch the standard mass? 10
Reaction of Magnesium with Hydrochloric Acid
Reaction of Magnesium with Hydrochloric Acid Your Name: Date: Partner(s): Objectives: React magnesium metal with hydrochloric acid, collecting the hydrogen over water. Calculate the grams of hydrogen produced
Experiment: Titration
Experiment: Titration INTRODUCTION In this experiment you will be determining the volume of sodium hydroxide solution of known concentration required to neutralize a known mass of an unknown acid in solution.
AP Chemistry Laboratory #1
Catalog No. AP8813 Publication No. 10528A Determination of the Empirical Formula of Silver Oxide AP Chemistry Laboratory #1 Introduction There is an official database that keeps track of the known chemical
Supernatant: The liquid layer lying above the solid layer after a precipitation reaction occurs.
Limiting Reagent Introduction The quantities of substances involved in a chemical reaction represented by a balanced equation are often referred to as stoichiometric amounts. Solution stoichiometry is
FURTHER EXPLORATIONS IN THE CHEMICAL WORLD CHM 103 LABORATORY MANUAL
FURTHER EXPLORATIONS IN THE CHEMICAL WORLD CHM 103 LABORATORY MANUAL Scott A. Sinex Barbara A. Gage Department of Physical Sciences and Engineering Prince George's Community College 2005 ACKNOWLEDGMENTS
Supernatant: The liquid layer lying above the solid layer after a precipitation reaction occurs.
Limiting Reagent Introduction The quantities of substances involved in a chemical reaction represented by a balanced equation are often referred to as stoichiometric amounts. Solution stoichiometry is
DETERMINATION OF ACETIC ACID IN VINEGAR
DETERMINATION OF ACETIC ACID IN VINEGAR 1 INTRODUCTION Juices from plants and fruits contain sugar. When these juices are fermented, the sugar molecules are converted into ethyl alcohol molecules (C 2
Experiment #7. Titration of Vinegar
Experiment #7. Titration of Vinegar Goals 1. To determine the mass percent of acetic acid in a solution via titration. 2. To master the technique of titration. Introduction Vinegar is a common household
Experiment 8: DETERMINATION OF AN EQUILIBRIUM CONSTANT
Experiment 8: DETERMINATION OF AN EQUILIBRIUM CONSTANT Purpose: The equilibrium constant for the formation of iron(iii) thiocyanate complex ion is to be determined. Introduction: In the previous week,
CHM111 Lab Titration of Vinegar Grading Rubric
Name Team Name CHM111 Lab Titration of Vinegar Grading Rubric Criteria Points possible Points earned Lab Performance Printed lab handout and rubric was brought to lab 3 Safety and proper waste disposal
Chemistry Calibration of a Pipet and Acid Titration
Chemistry 3200 Today you are given a chance to brush up on some of the techniques that you will be using during the remainder of the semester. Lab grades will be based on obtaining the correct answer in
ANALYTICAL WEIGHING, LIQUID TRANSFER, AND PENNY DENSITY REPORT
ANALYTICAL WEIGHING, LIQUID TRANSFER, AND PENNY DENSITY REPORT Name: Date: Section: Analytical Weighing Experimental Mass of Known Object: Known Mass: Difference: Methods of Determining Masses Data Units
Experiment #5. Empirical Formula
Experiment #5. Empirical Formula Goal To experimentally determine the empirical formula of magnesium oxide based on reaction stoichiometry. Introduction The molecular formula (usually shortened to simply
Minneapolis Community and Technical College. Separation of Components of a Mixture
Minneapolis Community and Technical College Chemistry Department Chem1020 Separation of Components of a Mixture Objectives: To separate a mixture into its component pure substances. To calculate the composition
Accuracy and Precision of Laboratory Glassware: Determining the Density of Water
Accuracy and Precision of Laboratory Glassware: Determining the Density of Water During the semester in the general chemistry lab, you will come into contact with various pieces of laboratory glassware.
Ascorbic Acid Titration of Vitamin C Tablets
Ascorbic Acid Titration of Vitamin C Tablets Part A. Preparation of Vitamin C Tablet Solutions 1. Obtain two vitamin C tablets. Place a plastic weighing boat on the balance, and press zero to tare the
EXPERIMENT 6 Empirical Formula of a Compound
EXPERIMENT 6 Empirical Formula of a Compound INTRODUCTION Chemical formulas indicate the composition of compounds. A formula that gives only the simplest ratio of the relative number of atoms in a compound
Moles and Chemical Formulas 11
Moles and Chemical Formulas 11 LABORATORY GOALS Determine the simplest formula of a compound. Calculate the percent water in a hydrate. Determine the formula of a hydrate. LAB INFORMATION Time: Comments:
Acid-Base Titration Curves Using a ph Meter
Acid-Base Titration Curves Using a ph Meter Introduction: In this experiment you will use a ph sensor to collect volume and ph data as you titrate two acids with sodium hydroxide. You will obtain titration
TITRATION CURVES INTRODUCTION. Read and/or review Sections 4.10 and 16.7 in your textbook.
1 TITRATION CURVES Copyright: Department of Chemistry, University of Idaho, Moscow, ID 83844-2343. 2013. INTRODUCTION Read and/or review Sections 4.10 and 16.7 in your textbook. In an acid - base titration,
EXPERIMENT 12B: TITRATION OF AN UNKNOWN ACID INTRODUCTION
EXPERIMENT 12B: TITRATION OF AN UNKNOWN ACID INTRODUCTION In this experiment you will determine the molar mass of an unknown acid by titration with the sodium hydroxide you prepared and standardized in
PURPOSE: 1. To illustrate an oxidation-reduction titration with potassium permanganate 2. To determine the percent mass of iron in an unknown.
PURPOSE: 1. To illustrate an oxidation-reduction titration with potassium permanganate 2. To determine the percent mass of iron in an unknown. PRINCIPLES: Oxidation and reduction reactions, commonly called
Substances and Mixtures:Separating a Mixture into Its Components
MiraCosta College Introductory Chemistry Laboratory Substances and Mixtures:Separating a Mixture into Its Components EXPERIMENTAL TASK To separate a mixture of calcium carbonate, iron and sodium chloride
Name: Date: AP Chemistry. Titrations - Volumetric Analysis. Steps for Solving Titration Problems
Name: Date: AP Chemistry Titrations - Volumetric Analysis Term Volumetric analysis Burette Pipette titrate titre aliquot end point equivalence point indicator primary standard standardisation secondary
Experiment 10 Acid-Base Titrimetry. Objectives
Experiment 10 Acid-Base Titrimetry Objectives 1. To standardize an acid, HCl, solution. 2. To determine the concentration of an unknown Na 2 CO 3, sodium carbonate solution. Introduction Alkaline conditions
TRATION: ANALYSIS OF VINE
Experiment 10 Name: 22 Ti TRATION: ANALYSIS OF VINE 31 Ga R In this experiment, you will learn the concept and technique of titration. You will determine the concentration of acetic acid in commercial
What are the three different types of elements and what are their properties?
Name: Partners name(s): Stamp: Laboratory 5: Types of Matter and its changes Compounds, mixtures, elements, chemical /physical properties Classify several different compounds, elements and mixtures by
Ascorbic Acid Titration of Vitamin C Tablets
Ascorbic Acid Titration of Vitamin C Tablets Introduction This experiment illustrates how titration, the process of slowly adding one solution to another until the reaction between the two is complete,
Ascorbic Acid Titration of Vitamin C Tablets
Ascorbic Acid Titration of Vitamin C Tablets Introduction This experiment illustrates how titration, the process of slowly adding one solution to another until the reaction between the two is complete,
Pre-Lab Read the entire laboratory assignment. Answer all pre-lab questions before beginning the lab.
Name: Date: Pd: Lab Partner: Lab # 13: Types of Reactions, Predicting Products of Chemical Reactions Lab Accelerated Chemistry 1 Introduction: If you examine your bicycle after it has been left out in
Acid-Base Titration. M M V a
Acid-Base Titration Pre-Lab Discussion In the chemistry laboratory, it is sometimes necessary to experimentally determine the concentration of an acid solution or a base solution. A procedure for making
Practice Examination #1
Practice Examination #1 Name: Date: 1. Which diagram shown represents a pipette? A. B. 3. Which diagram shown represents an Erlenmeyer flask? A. B. C. D. C. D. 2. The process of filtration is performed
Final Concentration 0 excess 0.1 M 0.1 M
PURPOSE: 1. To estimate the Acid-Ionization Constant (Ka) for acetic acid by conductivity testing comparisons. 2. To become familiar with the ph meter and ph measurements. 3. To determine the Acid-Ionization
EXPERIMENT 15. USING CONDUCTIVITY TO LOOK AT SOLUTIONS: DO WE HAVE CHARGED IONS OR NEUTRAL MOLECULES? rev 7/09
EXPERIMENT 15 USING CONDUCTIVITY TO LOOK AT SOLUTIONS: DO WE AVE CARGED IONS OR NEUTRAL MOLECULES? rev 7/09 GOAL After you complete this experiment, you should have a better understanding of aqueous solutions
College Chem I 2045C Specific Heat of a Metal-SL. Objective: In this lab, you will use calorimetry to determine the specific heat of a metal.
Student Name Partner s Name Date College Chem I 2045C Specific Heat of a Metal-SL Objective: In this lab, you will use calorimetry to determine the specific heat of a metal. Materials: Metal Sample Bunsen
Experiment Two Laboratory Balance: Mass Calculations
Name: Lab Section: Experiment Two Laboratory Balance: Mass Calculations Objective The balance is used almost every day in the chemistry lab, understanding the proper use and care for the balance is essential
Density of an Unknown
Experiment 3 Density of an Unknown Pre-Lab Assignment Before coming to lab: Read the lab thoroughly. Answer the pre-lab questions that appear at the end of this lab exercise. Purpose The density of an
Experiment 7A ANALYSIS OF BRASS
Experiment 7A ANALYSIS OF BRASS FV 10/21/10 MATERIALS: Spectronic 20 spectrophotometers, 2 cuvettes, brass sample, 7 M HNO 3, 0.100 M CuSO 4, 2 M NH 3, two 50 ml beakers, 100 ml beaker, two 25 ml volumetric
Ascorbic Acid Titration of Vitamin C Tablets
Ascorbic Acid Titration of Vitamin C Tablets Introduction This experiment illustrates how titration, the process of slowly adding one solution to another until the reaction between the two is complete,
# 12 ph-titration of Strong Acids with Strong Bases
# 12 ph-titration of Strong Acids with Strong Bases Purpose: A strong acid solution is titrated with a strong base solution. A titration curve is then used to determine the endpoint and find the concentration
SAMPLING VARIATION. Object. Pre-Lab Queries
Name Partner(s) Section Date SAMPLING VARIATION Object The object of this activity is to determine the variation and causes of variation that are introduced during sampling from a large mixture. Pre-Lab
EXPERIMENT #6 Calculation of the Atomic Mass of Magnesium
OBJECTIVES: EXPERIMENT #6 Calculation of the Atomic Mass of Magnesium Observe the reaction between oxygen and magnesium Accurately weigh reaction mixtures before and after reaction Calculate the atomic
Acid-Base Titration Curves Using a ph Meter
Acid-Base Titration Curves Using a ph Meter Introduction: In this experiment you will use a ph sensor to collect volume and ph data as you titrate two acids with sodium hydroxide. You will obtain titration
# 3 Density and Concentration of Aqueous KI
3 Density and Concentration of Aqueous KI Purpose: Concentrations of KI (aq) solutions are determined by measuring density very accurately. Introduction: In this lab, the mass (m) and volume (V) of potassium
TITRATION OF AN ACID WITH A BASE
TITRATION OF AN ACID WITH A BASE 1 NOTE: You are required to view the podcast entitled Use of Burets for Titrations before coming to lab this week. To view the podcast, consisting of eight episodes, go
Learn to do quantitative titration reactions. Observe the mole ratios of several simple chemical reactions.
CHAPTER 6 Stoichiometry of Reactions in Solution Objectives The objectives of this laboratory are to: Learn to do quantitative titration reactions. Observe the mole ratios of several simple chemical reactions.
Acid-Base Titration Acetic Acid Content of Vinegar
Acid-Base Titration Acetic Acid Content of Vinegar Prelab Assignment Read the entire lab. Write an objective and any hazards associated with this lab in your laboratory notebook. On a separate sheet of
COEFFICIENTS. - Experimentally, we can usually determine the reactants and products of a reaction
81 COEFFICIENTS - Experimentally, we can usually determine the reactants and products of a reaction - We can determine the proper ratios of reactants and products WITHOUT further experiments, using a process
CHM 130 Acid-Base Titration Molarity of Acetic Acid in Vinegar
CHM 130 Acid-Base Titration Molarity of Acetic Acid in Vinegar INTRODUCTION One of the most important techniques for chemical analysis is titration to an equivalence point. To illustrate this procedure,
Making Ionic Compounds Lab#
Making Ionic Compounds Lab# Elements combine to form compounds. If energy is released as the compound is formed, the resulting product is more stable than the reacting elements. In this lab you will react
CHM 130 Measurements, Significant Figures, Derived Quantities, and Unit Conversions
CHM 130 Measurements, Significant Figures, Derived Quantities, and Unit Conversions Objectives 1. Use measuring tools correctly 2. Read and record measurements correctly (significant digits and unit) 3.
Experiment #10: Analysis of Antacids
Experiment #10: Analysis of Antacids Purpose: In this experiment you will prepare one solution that is approximately 0.1 M NaOH. Then you will standardize this solution, which means that you will experimentally
DETERMINATION OF THE SOLUBILITY PRODUCT OF GROUPII HYDROXIDES
INTRODUCTION DETERMINATION OF THE SOLUBILITY PRODUCT OF GROUPII HYDROXIDES SOLUBILTY EQUILIBRIA Many systems in chemistry appear to be static when in fact they are in (dynamic) equilibrium. When a system
The effects of sodium chloride on the Boiling Point of Dihydrogen Monoxide
The effects of sodium chloride on the Boiling Point of Dihydrogen Monoxide Background: Dissolving a solute in a liquid can change its properties. These are called Colligative Properties, which are properties
Chemical Reactions: Titrations
1 Chemical Reactions: Titrations ORGANIZATION Mode: laboratory work, work in pairs Grading: lab notes, lab performance (titration accuracy), and post-lab report Safety: goggles, lab coat, closed-toe shoes,
Completion Match each each piece of equipment with its description. Please only put one number in the blank.
LAB SAFETY AND EQUIPMENT TEST Completion Match each each piece of equipment with its description. Please only put one number in the blank. 1. Used for filtering and for adding chemicals without spilling.
DETERMINATION OF K c FOR AN EQUILIBRIUM SYSTEM
DETERMINATION OF K c FOR AN EQUILIBRIUM SYSTEM 1 Purpose: To determine the equilibrium constant K c for an equilibrium system using spectrophotometry to measure the concentration of a colored complex ion.
Titration of Acetic Acid in Vinegar Minneapolis Community and Technical College v.9.17
Titration of Acetic Acid in Vinegar Minneapolis Community and Technical College v.9.17 Objective: To practice the correct use of the burette, volumetric pipette, and volumetric flask in analytical titrations.
In this laboratory exercise we will determine the percentage Acetic Acid (CH 3 CO 2 H) in Vinegar.
The titration of Acetic Acid in Vinegar In this laboratory exercise we will determine the percentage Acetic Acid (CH CO H) in Vinegar. We will do this by Titrating the Acetic Acid present with a Strong
Lab #5 - Limiting Reagent
Objective Chesapeake Campus Chemistry 111 Laboratory Lab #5 - Limiting Reagent Use stoichiometry to determine the limiting reactant. Calculate the theoretical yield. Calculate the percent yield of a reaction.
Chesapeake Campus Chemistry 111 Laboratory
Chesapeake Campus Chemistry 111 Laboratory Objectives Calculate molar mass using the ideal gas law and laboratory data. Determine the identity of an unknown from a list of choices. Determine how sources
GRAVIMETRIC ANALYSIS OF A CHLORIDE SALT. REFERENCES: Nelson, J., Chemistry: The Central Science, 3 rd edition, Prentice-Hall, 1985
1 GRAVIMETRIC ANALYSIS OF A CHLORIDE SALT REFERENCES: Nelson, J., Chemistry: The Central Science, 3 rd edition, Prentice-Hall, 1985 Typical techniques used in gravimetric analyses by quantitatively determining
Chemistry 151 Last Updated Dec Lab 8: Precipitation Reactions and Limiting Reagents
Chemistry 151 Last Updated Dec. 2013 Lab 8: Precipitation Reactions and Limiting Reagents Introduction In this lab you will perform a simple precipitation reaction between strontium nitrate and potassium
5. Statistical Evaluation of Acid-Base Indicators 1
5. Statistical Evaluation of Acid-Base Indicators 1 This experiment introduces you to the use of indicators and to the statistical concepts of mean, standard deviation, Grubbs test, F test, and t test.
To see how this data can be used, follow the titration of hydrofluoric acid against sodium hydroxide:
Weak Acid Titration v010516 You are encouraged to carefully read the following sections in Tro (3 rd ed.) to prepare for this experiment: Sec 4.8, pp 168-174 (Acid/Base Titrations), Sec 16.4, pp 769-783
or a chemical change in several experimental trials.
Regular Chemistry Lab Chemical and Physical Changes. Intro: As we study matter, we base most of our classification and identification of pure substances on chemical and physical properties. A physical
Experiment 7: Titration of an Antacid
1 Experiment 7: Titration of an Antacid Objective: In this experiment, you will standardize a solution of base using the analytical technique known as titration. Using this standardized solution, you will
Experiment 4 Stoichiometry : Limiting Reagents & % Yield Making Chalk Lab Owl Announcement: Introduction:
Experiment 4 Stoichiometry : Limiting Reagents & % Yield Making Chalk Lab Owl Announcement: Upon completion of this lab go onto OWL. Your third Lab Owl assignment, Lab Owl: Exp 4, should appear there.
SIGNIFICANT FIGURES BEGIN
SIGNIFICANT FIGURES BEGIN and someone hands you this. Imagine you are asked to measure the length of something... How do we use it most effectively? Rulers, thermometers, and graduated cylinders, to name
Name Date. Measuring Length and Volume
Measuring Length and Volume 1) The abbreviation for centimeter is 2) Which of the following pieces of equipment is used to measure centimeters? a) Balance b) calculator c) graduated cylinder d) ruler 3)
Upon completion of this lab, the student will be able to:
1 Learning Outcomes EXPERIMENT 30A7: VINEGAR TITRATION Upon completion of this lab, the student will be able to: 1) Measure the amount of acetic acid in a solution of vinegar Introduction The molar concentration
CH O 2 2 H 2 O + CO 2
Name: Partners name: Laboratory 9: Types of Chemical Reactions 1. Lab Quiz 12 2. What are the different types of reactions? 3. What influences the rate of reactions? 4. Do reactions always go one way?
EXPERIMENT 5 ACID-BASE TITRATION
EXPERIMENT 5 ACID-BASE TITRATION INTRODUCTION Much of chemistry and biology is concerned with the behavior of acids and bases. Acids and bases are participants in many reactions in nature, and many reactions
CHM 130LL: The Metric System
CHM 130LL: The Metric System In this experiment you will: Determine the volume of a drop of water using a graduated cylinder Determine the volume of an object by measuring its dimensions Determine the
Ascorbic Acid Titration of Vitamin C Tablets This lab will be completed individually! Make sure you come prepared!
Ascorbic Acid Titration of Vitamin C Tablets This lab will be completed individually! Make sure you come prepared! This laboratory experiment has a formal report. Consult the guidelines for writing a formal
Prince George s Community College PL 2: CHARACTERIZATION OF A MONOPROTIC WEAK ACID BY POTENTIOMETRIC TITRATION
Prince George s Community College Name Section Partner(s) Date PL 2: CHARACTERIZATION OF A MONOPROTIC WEAK ACID BY POTENTIOMETRIC TITRATION PRE-LAB QUERIES 1. Complete the neutralization reactions given
CHEM 122 LABORATORY SKILLS EXAMINATION
Form 2014 CHEM 122 LABORATORY SKILLS EXAMINATION Prepared by Ross S. Nord and colleagues, Eastern Michigan University PURPOSE Assess each student s ability to work independently in the lab using the techniques
EXPERIMENT 9 BUFFERS PURPOSE: To understand the properties of a buffer solution
PURPOSE: To understand the properties a buffer PRINCIPLES: A buffered is an aqueous that resists changes in ph upon the addition small amounts acids and bases. In order for the to resist changes in ph,
*You should work in groups of no more than 3 students. Each individual is responsible for all data and information in their own booklet.
Name Period 1 *You should work in groups of no more than 3 students. Each individual is responsible for all data and information in their own booklet. Pre-Lab Questions: What is the molarity equation?
Titration with an Acid and a Base
Skills Practice Titration with an Acid and a Base Titration is a process in which you determine the concentration of a solution by measuring what volume of that solution is needed to react completely with
EXPERIMENT #9 PRELAB EXERCISES. Redox Titration (Molarity Version) Name Section. 1. Balance the following redox reaction under acidic conditions.
EXPERIMENT #9 PRELAB EXERCISES Redox Titration (Molarity Version) Name Section 1. Balance the following redox reaction under acidic conditions. C 2 O 2-4 (aq) + MnO - 4 (aq) CO 2 (g) + Mn 2+ (aq) 2. A
Physical and Chemical Properties of Matter Lab
Physical and Chemical Properties of Matter Lab Purpose To introduce the student to physical and chemical properties of matter and their use for the identification and separation of compounds. Each student
PREPARATION FOR CHEMISTRY LAB: FLUORIDE IN WATER
1 Name: Lab Instructor: PREPARATION FOR CHEMISTRY LAB: FLUORIDE IN WATER On these problems, the solvent is water and the solution is sufficiently dilute so that the density of the solution is the same
Chemistry 212 MOLAR MASS OF A VOLATILE LIQUID USING THE IDEAL GAS LAW
Chemistry 212 MOLAR MASS OF A VOLATILE LIQUID USING THE IDEAL GAS LAW To study the Ideal Gas Law. LEARNING OBJECTIVES To determine the molar mass of a volatile liquid. BACKGROUND The most common instrument
Redox Lab. By Maya Parks. Partner: Allison Schaffer 5/21/15. Abstract:
Redox Lab By Maya Parks Partner: Allison Schaffer 5/21/15 Abstract: This lab was performed to determine the molarity of a solution of iron (II) sulfate by titrating it with a.0200m solution of potassium
Molarity of Acetic Acid in Vinegar A Titration Experiment
Molarity of Acetic Acid in Vinegar A Titration Experiment Introduction Vinegar is prepared commercially in two steps, both requiring microorganisms. The first step is the production of ethyl alcohol, C
This chapter contains detailed directions for performing a variety of chemical
CHAPTER 37 Selected Methods of Analysis Chemistry is primarily an experimental science. This chapter presents a variety of laboratory experiments, from classical titrations and gravimetry to instrumental
Calorimetry: Heat of Solution
Calorimetry: Heat of Solution When a substance undergoes a change in temperature, the quantity of heat lost or gained can be calculated using the following relationship: (heat) = m s T (1) The specific
Upon completion of this lab, the student will be able to:
1 Learning Outcomes EXPERIMENT 30A5: MOLAR VOLUME OF A GAS Upon completion of this lab, the student will be able to: 1) Demonstrate a single replacement reaction. 2) Calculate the molar volume of a gas
#13 ph-titration of Weak Acids with Strong Bases
#13 ph-titration of Weak Acids with Strong Bases Purpose: A weak acid solution is titrated with a strong base solution. A titration curve is then used to identify the unknown acid and to find its concentration.
CHEM 334 Quantitative Analysis Laboratory
Calibration of Volumetric Glassware Introduction Volumetric glassware is a class of glass vessels that are calibrated to contain or deliver certain volumes of substances. Graduated cylinders, pipettes
Experiment 4: COMPOSITION OF A HYDRATE
Experiment 4: COMPOSITION OF A HYDRATE Purpose: Determine the empirical formula of an unknown hydrate and the percentage by mass of water in the hydrate Performance Goals: Gain skills in the operation
2 burets (50 ml) Standard solution of NaOH (0.600 M) Phenolphthalein indicator
Name: \[-[L Percentage of Acetic Acid In Vinegar Lab 4-5 INTRODUCTION: The quality of acid in a sample of vinegar may be found by titrating the sample against a standard basic solution. ost commercial
10. How many significant figures in the measurement g? a. 2 b. 3 c. 4 d. 5 e. 6
Summer Practice Test Ch 1 (va pg 1 of 5) Matter and Measurement Name Per You should NOT use a calculator except for #0. This practice test should be in your 3 ring notebook on the first day of school.
Scientific Problem Solving
Scientific Problem Solving Measurement and Scientific Tools Description and Explanation Suppose you work for a company that tests how cars perform during crashes. You might use various scientific tools
Chemistry 101 Experiment 12B-ANALYSIS OF COMMERCIAL VINEGARS
Vinegar is a solution of acetic acid (HC2H3O2). The strength or concentration of the vinegar is usually given on the label of the bottle in percent by weight or percent acidity. The United States Food
MORE LIGHTS, COLOR, ABSORPTION!
Name Partner(s) Section Date MORE LIGHTS, COLOR, ABSORPTION! PRE-LAB QUERIES 1. The terms absorption and transmittance are often used when describing the interaction of light with matter. Explain what
A STUDY OF REACTION RATES
CH095 A Study of Reaction Rates Page 1 A STUDY OF REACTION RATES Chemical reaction rates are affected by changes in concentration of the reactants and temperature. How concentration and temperature affect
MEASUREMENT: PART II
1 MEASUREMENT: PART II Copyright: Department of Chemistry, University of Idaho, Moscow, ID 83844-2343, 2013. INTRODUCTION Read and/or review Section 1.7 and Figure 7.5 in your textbook. The first part
Matter & Energy: Temperature & Heat in Physical Processes
Matter & Energy: Temperature & Heat in Physical Processes Objectives: 1) To observe changes in temperature and heat energy which occur during physical processes such as dissolving. 2) To become familiar