(Solved): At 500C, cyclopropane (C3H6) rearranges to propene (CH3CH=CH2). The reaction is f ...

At $500^{?}\mathrm{C}$, cyclopropane $\left({\mathrm{C}}_3{\mathrm{H}}_6\right)$ rearranges to propene $\left({\mathrm{CH}}_3?\mathrm{CH}={\mathrm{CH}}_2\right)$. The reaction is first order, and the rate constant is $6.7\times 10^{?4}{\mathrm{s}}^{?1}$. If the initial concentration of ${\mathrm{C}}_3{\mathrm{H}}_6$ is $5.00\times 10^{?2}M$. What is the molarity of ${\mathrm{C}}_3{\mathrm{H}}_6$ after $25\min$ ? Express your answer using two significant figures. X Incorrect; Try Again; 2 attempts remaining The units for rate are inverse seconds $\left({\mathrm{s}}^{?1}\right)$. It may help to start by converting the time in minutes to soconds belore conducting the calculation. Part B How many minutes does it take for the ${\mathrm{C}}_3{\mathrm{H}}_6$ concentration to drop to $1.40\times 10^{?2}\mathrm{M}$ ? Express your answer using two significant figures. How many minutes does it take for $30\%$ of the ${\mathrm{C}}_3{\mathrm{H}}_6$ to react? Express your answer using two significant figures.