Question: A reaction 2 A --7 P has a third-order rate law with k = 3.50 X 10-4 dm3 mol3 S-1. Calculate the time required for

A reaction 2 A --7 P has a third-order rate law with k = 3.50 X 10-4 dm3 mol3 S-1. Calculate the time required for the concentration of A to change from 0.077 mol dm-3 to 0.021 mol dm-3.

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