For the reaction A + B -----> AB, the following data were obtained. Trial  Initial (A) Initial  (B) Initial Rate 1 0.720M 0.180M 0.470 2 0.720M 0.720M 1.880 3 0.360M  0.180M 0.117 a. Determine the order with respect to each reactant b. Determine the overall order of reaction c. Write the rate expression for the reaction d. Find the value of the rate constant,k   2. The initial concentration of a reactant is 1.58 M for a second -order reaction. It takes 12.3 minutes for the concentration to decrease to 0.751 M. Calculate the rate constant k.

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