Overview of Experiment 13

Overview of Experiment 13 - Overview of Experiment 13...

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Overview of Experiment 13 Goals/Objectives: In the reaction between sodium hydroxide and crystal violet, you all will: - Determine rate constant - Determine order of reaction with respect to crystal violet using o Integrated rates method o Initial rates method - Utilize Beer’s law to establish a standard curve - Use colorimetry to measure a color change which is an indirect way of measuring concentration change since the reactants are colored while the products are colorless Today in Lab: - Part 1 : 30 minute run of stock solution (1.5E-5 M Crystal violet) o Get 9mL into 50mL beaker o Add 1mL of NaOH o Fill cuvet with this solution o Run Absorbance vs. Time in Datastudio - Part 2 : Make your standard solutions The volume of stock solution used can be calculated from the formula (M 1 V 1 = M 2 V 2 ). An example of this calculation for 1.125E-5M solution: mL M E mL M E M V M V V M V M V M V M stock diluted diluted stock stock stock diluted diluted stock stock diluted diluted 75 5 5 . 1 100 * 5
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This document was uploaded on 11/04/2011 for the course CHEM 102 at UNC.

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Overview of Experiment 13 - Overview of Experiment 13...

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