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Radioactive decay can be described by the following equation In A = In A, - kt where Ag is the original amount of the substance, A is the amount of the substance remaining after time t, and k is a constant that is characteristic of the substance. 1 For the radioactive isotope radon-222, k is 1.81 x 10 days If the original amount of radon-222 in a sample is 27.2 mg, how much radon-222 remains after 3.20 days have passed? mg

Radioactive decay can be described by the following equation In A = In A, - kt where Ag is the original amount of the substance, A is the amount of the substance remaining after time t, and k is a constant that is characteristic of the substance. 1 For the radioactive isotope radon-222, k is 1.81 x 10 days If the original amount of radon-222 in a sample is 27.2 mg, how much radon-222 remains after 3.20 days have passed? mg

Chemistry & Chemical Reactivity
Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter25: Nuclear Chemistry
Section: Chapter Questions
Problem 41PS
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Radioactive decay can be described by the following equation In A = In Ao - kt where Ag is the original amount of the substance, A is the amount of the substance remaining after time t, and k is a constant that is characteristic of the substance. 1 For the radioactive isotope radon-222, k is 1.81 x 10 1 days If the original amount of radon-222 in a sample is 27.2 mg, how much radon-222 remains after 3.20 days have passed? mg
Transcribed Image Text:Radioactive decay can be described by the following equation In A = In Ao - kt where Ag is the original amount of the substance, A is the amount of the substance remaining after time t, and k is a constant that is characteristic of the substance. 1 For the radioactive isotope radon-222, k is 1.81 x 10 1 days If the original amount of radon-222 in a sample is 27.2 mg, how much radon-222 remains after 3.20 days have passed? mg
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