Problem: Consider the first-order reaction described by the equation cyclopropane propeneAt a certain temperature, the rate constant for this reaction is 5.62x10-4 s-1. Calculate the half-life of cyclopropane at this temperature. Given an initial cyclopropane concentration of 0.00850 M, calculate the concentration of cyclopropane that remains after 2.20 hours.

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Part A

We are being asked to determine the half-life of the following reaction 

cyclopropene, C3H6 (g) → propene, C3H6 (g)

We will use the following formula to solve this problem

t12 = ln 2k


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Problem Details

Consider the first-order reaction described by the equation cyclopropane propene

At a certain temperature, the rate constant for this reaction is 5.62x10-4 s-1. Calculate the half-life of cyclopropane at this temperature. 

Given an initial cyclopropane concentration of 0.00850 M, calculate the concentration of cyclopropane that remains after 2.20 hours.

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Our tutors have indicated that to solve this problem you will need to apply the First Order Half Life concept. You can view video lessons to learn First Order Half Life. Or if you need more First Order Half Life practice, you can also practice First Order Half Life practice problems.