The following data were measured for the reaction SO2(g) + 3I-(aq) -> 2SO2(aq) + I3-(aq):
Experiment [SO2] (M) [I-] (M) Initial Rate (M/s)
1 0.018 0.036 2.6x10^2
2 0.027 0.036 3.9x10^3
3 0.036 0.054 7.8x10^4
4 0.050 0.072 1.4x10^5
a) Determine the rate law for the reaction.
b) What is the initial instantaneous rate of reaction when both reactants are 1.0 M?