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. If Gallium-68 has a half-life of 1.13 hours, how much of a 10.0 mg sample is left after 5.69 hours?

. If Gallium-68 has a half-life of 1.13 hours, how much of a 10.0 mg sample is left after 5.69 hours?

Chemistry
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
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Questions: 1. If Gallium-68 has a half-life of 1.13 hours, how much of a 10.0 mg sample is left after 5.69 hours? 2. lodine-131 is used to do thyroid scans. How much is left of a 1.5 g sample after 6.9 weeks? 3. Chromium-51 is an unstable isotope with a half life of 28 days. What fraction of the sample will be left after 168 days?
Transcribed Image Text:Questions: 1. If Gallium-68 has a half-life of 1.13 hours, how much of a 10.0 mg sample is left after 5.69 hours? 2. lodine-131 is used to do thyroid scans. How much is left of a 1.5 g sample after 6.9 weeks? 3. Chromium-51 is an unstable isotope with a half life of 28 days. What fraction of the sample will be left after 168 days?
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