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Exp13_template - Experiment 13 Chemical Kinetics Fall 2008 Name Nicholas Givens Lab Day and Time TA Leila Flagg Section Documentation Tuesday

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Experiment 13 – Chemical Kinetics Fall 2008 Name Nicholas Givens Lab Day and Time Tuesday 1:00PM TA Leila Flagg Section 408 Documentation Joe Sircar, Lab Manual 13 GRADING RUBRIC Possible Points Points Received Introduction 5 Purpose of report Goals of the experiment Materials and Methods 5 Reference lab manual Only describe deviations Results and Discussion 70 Inserted titles for tables Inserted graphs into template Inserted captions for each graph Showed complete sample calculations Summarized all data in tables Answered questions completely Error analysis Laboratory Technique 20 TOTAL (100) TA Comments/Suggestions:
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C HEMISTRY 102L R EPORT T EMPLATE EXPT. Chemical Kinetics: Reaction of Crystal Violet with Sodium Hydroxide 13 13 Introduction The purpose of this report is to illustrate the connection between reactant concentration and reaction rate. The objective of the experiment was to experimentally determine the rate law and rate constant for a model reaction. Materials and Methods The procedure for this experiment was taken from Lab Manual 13, and my partner was Joe Sircar. We had no deviations from the procedure outlined in the lab manual. Results and Discussion Colorimetry can be used to indirectly measure the progression of a reaction by measuring the change in color as the reaction moves toward equilibrium. The reaction investigated in this experiment is between crystal violet and NaOH. Crystal violet is the only colored reactant or product used in the reaction and by measuring its color change we are able to determine how far the reaction has proceeded. As the reactants turn into products, the crystal violet is used up and the intensity of the purple decreases. When used in conjunction with the elapsed time, the measurements from the colorimeter can be used to determine the rate of reaction. Beer’s Law, A= ε bc relates concentration (c) and absorbance (A). This law relates to the experiment because it allows the concentration of the reactants to be determined, given a
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This document was uploaded on 11/04/2011 for the course CHEM 102 at UNC.

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Exp13_template - Experiment 13 Chemical Kinetics Fall 2008 Name Nicholas Givens Lab Day and Time TA Leila Flagg Section Documentation Tuesday

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