Vindow Help ? ? 70% ?,, Sun 12:03 PM ale Unit 5 Sample Test-Black. Ashley Phelps

Question

Vindow Help ? ? 70% ?,, Sun 12:03 PM ale Unit 5 Sample Test-Black. Ashley Phelps COLLEGE where, TCC Learn Library Help Il - Spring 2018 TC295.CHM.112.HZ2C.SP18 Unit Assignments Unit 5 Sample Test ple Test Consider the following reaction whose first and second half-lives are 39.5 and 19.75 minutes respectively. If the rate constant is equal to 0.2337 and [Alb-18.46, calculate the [A] att 12.98 minutes. Points available on this athempt: 0.6 of original1 Unimited attempts Score on last attempt:0 Score in gradebook? Submit 8

Explanation / Answer

Since the second half life is equal to half of the first half life, so this indicates that the reaction is a zero order reaction.

So we have:

[A] = [A0] - k*t

Putting values:

[A] = 18.46 - 0.2337*12.98 = 15.43

Hope this helps !

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