Please help me with a Rate Law problem.?
A reaction of the form
aA ----> Product gives a plot of ln[A] vs time in seconds which is a straight line with a slope of -7.35 x10^-3. Assuming 0.0100 M, calculate the time in seconds required for the reaction to reach 80.5 percent completion.
I have the integrated rate law as ln[A]= -kt + ln[A]_0. but it's not getting be the right answer. Please help.