2. The decomposition of an unknown chemical A is found to be first order. After 70 minutes, 40% of the concentration remains in the container. How long does it take for the container to have 20% remaining. a) 140 minutes b) 57 minutes c) 167 minutes d) 70 minutes e) 123 minutes

2. The decomposition of an unknown chemical A is found to be first order. After 70 minutes, 40% of the concentration remains in the container. How long does it take for the container to have 20% remaining. a) 140 minutes b) 57 minutes c) 167 minutes d) 70 minutes e) 123 minutes

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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Question

2. The decomposition of an unknown chemical A is found to be first order. After 70 minutes, 40% of the
concentration remains in the container. How long does it take for the container to have 20% remaining.
a) 140 minutes
b) 57 minutes
c) 167 minutes
d)
70 minutes
e) 123 minutes

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