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Kinetics Of Hydrogen Peroxide

Kinetics of Hydrogen Peroxide
February 22, 2007
Chem. 1130
TA: Ms. Babcock
Room 1830 Chemistry Annex


PURPOSE OF THE EXPERIMENT
Kinetics of Hydrogen Peroxide

The major purpose of this experiment is to determine the rate law constant for the reaction of hydrogen peroxide and potassium iodide. In this experiment, the goal will be to try to measure the rate law constant at low acidity, since at low acidity, anything less than 1.0 x 10-3M, the effect of the hydrogen ion is negligible. To calculate the rate, the experiment will have to utilize the rate equation, which is expressed as Rate = k[H2O2]a[I-]b. At low acidity, the rate of the Hydrogen ion will not change, from our equation:

H2O2 (aq) + 2I- (aq) + 2H+ (aq) → I2 (aq) + 2H2O (l). Eqn. 1

If the rate in hydrogen does not change, it makes it easier to solve for the other rate constant. In this experiment, sodium thiosulfate will be added to suppress the rate of the reverse reaction. The objective is to......


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Approximate Word Count: 2447
Approximate Pages: 10 (250 words per double-spaced page)

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