# Problem: A first-order reaction AB has the rate constant k = 3.3×10−3 s-1 .If the initial concentration of A is 2.6×10−2 M, what is the rate of the reaction at t = 660 s ?

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A first-order reaction AB has the rate constant k = 3.3×10−3 s-1 .

If the initial concentration of A is 2.6×10−2 M, what is the rate of the reaction at t = 660 s ?