Homework Help: Chemistry

Posted by Tasnim on Monday, October 22, 2012 at 1:36pm.

The rate constant for a certain reaction is k=8.90×10^−3 s^-1. If the initial reactant concentration was 0.400M, what will the concentration be after 13.0 minutes?

Chemistry - DrBob222, Monday, October 22, 2012 at 2:16pm
With unit for rate constant in s^-1, you know it is first order. Therefore, use the equation ln(No/N) = kt
You know No = 0.400M, solve for N, you know k and t.

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