6. (10 pts) The following results were obtained in experiments designed to study the rate of this reaction. 2A + B C + D Experiment [A]. (M) [B], (M) Initial Rate of Formation of D (M-min 2) 1 0.1 0.1 1.5 x 103 2 0.1 0.2 3.0 x 10 3 0.4 6.0 x 103 0.2 a) Derive the rate law for the reaction. b) Calculate the rate constant for the reaction. c) Which of the following reaction mechanisms is consistent with the rate law determined in part a)? Explain. 1. (slow) A + B C + E (fast) A + E D II. (fast) B C + E (slow) A + E + F (fast) A+ F D III. The rate-limiting step gives the proper rate law