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
A new drug received by a product research and development department was given preliminary stability tests and found to follow a first-order degradation at 30 C and 40 C. After 24 hours at 40 C, the drug was found to be 80% active. After 24 hours at 30 C, the drug was found to be 85% active. Please calculate, based on this data, the time required for a 10% loss of potency at 25 C (shelf life).
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