Kinetics Lab

Kinetics Lab - Chemical Kinetics Lab II Introduction Rates...

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Chemical Kinetics Lab
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II. Introduction Rates and an overall rate law quantify all chemical processes. The law, rate = k[concentrationA] a [concentrationB] b , where k is a fixed constant for the reaction. By running a reaction of bleach with a common food dye and measuring absorbencies and initial concentrations, the values of a, b, and k can be found for the reaction. In this experiment, a will correspond to red dye #40 and b will correspond to the common household bleach. The use of Beer’s Law will also come in handy because absorbencies will be measured at certain time intervals to measure change in concentration and the absorbencies can be plugged into Beer’s Law with the experimental ε value in order to generate concentration values. Once concentration values have been calculated, graphs will be made in order to find the “order” of the reaction with respect to a and b, or in other words, the values of a and b in the general rate law equation. The object of the graphs is to generate a straight-
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This note was uploaded on 09/22/2008 for the course CHEM 104B taught by Professor Staff during the Spring '07 term at Arizona.

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Kinetics Lab - Chemical Kinetics Lab II Introduction Rates...

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