5. The reaction A products is a second-order reaction and takes place at 32°C. a. Given that the half-life of this reaction is 4.22 x 104 s when the initial concentration of A is 0.2 M, what is the rate constant for the reaction? Include units with your answer. b. At 305 K, how long will it take for a 0.028 M sample of A to decrease to 0.0042 M? c. Initially 4.00 mol of A is placed in a 6.00 L container and allowed to react. How many moles of A would remain after 24.0 hours? Assume the temperature is 32 °C.

5. The reaction A products is a second-order reaction and takes place at 32°C. a. Given that the half-life of this reaction is 4.22 x 104 s when the initial concentration of A is 0.2 M, what is the rate constant for the reaction? Include units with your answer. b. At 305 K, how long will it take for a 0.028 M sample of A to decrease to 0.0042 M? c. Initially 4.00 mol of A is placed in a 6.00 L container and allowed to react. How many moles of A would remain after 24.0 hours? Assume the temperature is 32 °C.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Half-life of a reaction The order of the reaction, ? → products, is being determined through the half-life method. Two setups at the same temperatures but different starting concentrations of A were investigated. For the first run, the initial concentration of A was 0.78 M and the halflife was determined to be 45 minutes. In the second run, the initial concentration of A was 1.32 M. Determine the following : a. If the reaction is 1st order, what should be the half-life of the second run in minutes? b. If the reaction is 2nd order, what should be the half-life of the second run in minutes? c. If the reaction is 0th order, determine the concentration of A in the second run after 152.3 minutes.
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24. provide only the answer asap pls no need solution
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