Homework Help: Chemistry

Posted by Marisol on Tuesday, February 6, 2007 at 9:16pm.

Consider the reaction A ==> B. If the reaction is first-order in A with the initial concentration A being 6.048M, what is the concentration of A after 1.986 seconds if the rate constant is 0.483s-1?

Error tolerance: ą0.5%

Can someone explain how to do this? Thanks

ln(Ao/A) = kt
You know Ao, solve for A, you know k and you know t.

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