Tritium H-3 has a half-life of 12.3 years. If a sample of 3 g of H-3 is produced, what will be the mass of tritium remaining after 24.6 years? (Recall N(remaining) = N(original) (1/2)^t , where N(remaining) is the remaining amount of a radioactive substance, N(original) is the original amount of the radioactive substance and t is the number of 1/2 lives).

Chemistry
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Chapter19: The Nucleus: A Chemist's View
Section: Chapter Questions
Problem 36E
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Tritium H-3 has a half-life of 12.3 years. If a sample of 3 g of H-3 is produced, what will be the mass of tritium remaining after 24.6 years? (Recall N(remaining) = N(original) (1/2)^t , where N(remaining) is the remaining amount of a radioactive substance, N(original) is the original amount of the radioactive substance and t is the number of 1/2 lives).
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