I have a kinetics question about integrated rate laws?

  • Thread starter Thread starter amarillo
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amarillo

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The question goes:
For the first order decomposition of acetone at 650 K, the concentration of acetone was 0.350 M after 27.0 min and 0.191 M after 44 min.
I tried using the integrated rate law:

ln[A] = -kt + ln [A]0 (where [A]0 is my original concentration)

for a first order reaction, using 0.350M as my original concentration and 0.191 M as my other concentration. I ended up with k=9.38 x 10^-4 which was wrong.
Can someone please help?
 
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