A chemical reaction A B + C is first order in A and has a rate constant of 1.2 x 10 3 min -1. If the initial concentration of A is 0.40 M., how much time must pass in order to reduce the concentration of A to 0.22 M? O a. 2.2 x 102 min O b.5.0 x 102 min O.7.4 x 10-3 min O d. 3.0 x 102 min O e.4.3 x 10-4 min

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