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Chemlab4 - CHY 123 Chemical Kinetics Iodine Clock...

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CHY 123 Chemical Kinetics: Iodine Clock Experiment Introduction To determine the rate law for a reaction we must understand how the speed of a reaction can be determined and the affects of concentration on the rate of a reaction. Many different factors (such as temperature) affect the speed of a reaction. This overall process can be summed up as chemical kinetics. The study of chemical kinetics can be used to compare reactions such as crystal formations or of explosions. Procedures We gathered the needed chemicals and containers needed for the experiment. We first tried many different combinations of the chemicals in the small reaction plate and recorded to different reactions and what occurred after each mixture. After we had used all the combinations that we could think of we then worked on calculating the initial concentrations of the reactants that we would be using in this experiment. Afterward, we filled an Erlenmeyer flask with 10.0 mL of KI, 1mL of starch solution, 1.0 mL of Na 2 S 2 O 3 and 20.0 mL of KN O
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