Answer to Question #83073 in General Chemistry for Frax

Question

Expt. [ S2O8 raised to 2- ] [I raised to negative] Initial Rate
1. 0.036 0.060 1.5 × 10 raised to negative 5
2. 0.072 0.060 2.9 × 10 raised to negative 5
3. 0.036 0.0120 2.9 × 10 raised to negative 5

S2O8 raised to 2- (aq) + 3I raised to negative (aq) yields 2SO4 raised to 2- (aq) + I3 raised to negative (aq)

A. Determine the order of the reactions and write each reactant. Write the rate law for the above reaction.
B. Calculate the rate constatnt, k, and give its appropriate units.
C. Calculate reaction rate when each reactant concentration is 0.20 M.