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7. How much of a sample of gallium-72 (t = 14.1 hours) must have been present originally if, after 56.04 hours, 8.00 g remains? [SHOW WORK]

7. How much of a sample of gallium-72 (t = 14.1 hours) must have been present originally if, after 56.04 hours, 8.00 g remains? [SHOW WORK]

Chemistry: The Molecular Science
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter18: Nuclear Chemistry
Section: Chapter Questions
Problem 28QRT
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7. How much of a sample of gallium-72 (t½ = 14.1 hours) must have been present originally if, after 56.04 hours, 8.00 g remains? [SHOW WORK]
Transcribed Image Text:7. How much of a sample of gallium-72 (t½ = 14.1 hours) must have been present originally if, after 56.04 hours, 8.00 g remains? [SHOW WORK]
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