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Lab Report Exp13

Lab Report Exp13 - Ryan Cohen Chemical Kinetics Rate of...

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Ryan Cohen 3/8/09 Chemical Kinetics: Rate of Decomposition of Hydrogen Peroxide The purpose of this lab was to demonstrate the dynamics of chemical kinetics; specifically the significance of concentration and temperature in monitoring the rate of a reaction. The first part of the lab demonstrated the effect of high concentration of reactants on the overall rate of a reaction. The second part of the lab demonstrated the effect of high temperatures on the overall rate of a reaction. The last part of the lab explored the use of a catalyst to accelerate a reaction while demonstrating that a catalyst can be completely recovered at the completion of a reaction. The first part of the lab monitored the rate of 3 solutions of differing concentrations of KI, water, and peroxide in solution, noting the effects of concentration on the overall rate of the consequent reaction. The rate of each solution was compared, measuring the volume of O 2 (g) produced by the reaction at 2 mL intervals. The subsequent data plot revealed the rate of each reaction in solution. Solution 1, which mixed 5 mL of peroxide and 10 mL of KI, reacted at a rate of .032 mL O 2 s -1 . Solution 2, which mixed 10 mL of peroxide and 10 mL of KI, reacted at a rate of .060 mL O
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