Chapter 11, Problem 41QAP

In the first-order decomposition of acetone at 500°C

${\text{CH}}_{\text{3}}{\text{COCH}}_{\text{3}}\left(g\right)\to \text{products}$It is found that it takes 12.7 h to decompose 0.0622 M acetone to 0.0133 M.

(a) Find k at 500°C.

(b) What is the rate of decomposition when $\left[{\text{CH}}_{\text{3}}{\text{COCH}}_{\text{3}}\right]=0.0\text{5}00M$?

(c) How many minutes will it take to decompose enough acetone so that 68% remains?