Problem: A first-order reaction is 75.0% complete in 320. s.a. What are the first and second half-lives for this reaction?

FREE Expert Solution
  • We will be using the first order equation where:

  • Calculate k for this problem by plugging in the [A]t , [A]0 and t
  • The k calculated can be used to get the first half life.

  • Second half life will be double of the first half life
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Problem Details

A first-order reaction is 75.0% complete in 320. s.

a. What are the first and second half-lives for this reaction?

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What scientific concept do you need to know in order to solve this problem?

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

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Our data indicates that this problem or a close variation was asked in Chemistry: An Atoms First Approach - Zumdahl Atoms 1st 2nd Edition. You can also practice Chemistry: An Atoms First Approach - Zumdahl Atoms 1st 2nd Edition practice problems.