Principles of Instrumental Analysis
7th Edition
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Chapter32: Radiochemical Methods
Section: Chapter Questions
Problem 32.9QAP
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Question
A sample of sodium-24 chloride contains 0.050 mg of Na-24. After 20.5 h, 0.019 mg of Na-24 is left. What is the half-life of Na-24?
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