CHEM 1&2 Lab Manual & worksheets pg 188

CHEM 1&2 Lab Manual & worksheets pg 188 - For the...

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Experiment 18: Kinetics General Chemistry I and II Lab Manual Dakota State University page 188 of 232 other pours the solution. When you are ready, one partner should pour two millileters of the sulfite solution into the cuvette and quickly close the colorimeter cover, while the other partner starts recording the data. You are waiting for absorbance to rapidly increase; it should level off shortly thereafter. Clean and dry the cuvette and test tubes. In one test tube, place one milliliter of iodate solution, and one millileter of distilled water. In the other, place two millileters of sulfite solution. Repeat the above procedure for using the colorimeter to collect data.
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Unformatted text preview: For the third trial, after cleaning and drying the cuvette and test tubes, place two millileters of iodate solution into one test tube, and one millileter of sulfite, plus one millileter of water in the other. Again, run the reaction to collect data. Calculations: From the graphs, determine the rate of reaction for each of the three runs in seconds. Notice that between run two and run one, we doubled the concentration of iodate while keeping the concentration of sulfite constant. From the data, determine the value of x. In an analogous manner, determine the value of y from runs one and three. Choose one of the runs, and determine your experimental value of k....
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This note was uploaded on 01/27/2012 for the course CHM 2045 taught by Professor Josephwalter during the Fall '11 term at Dakota State.

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