old-198 is a β emitter used to treat leukemia. It has a half-life of 2.7 days. The dosage is 1.0 mCi/kg body weight. How many half lives must pass for a 70 mCi dose to decay to 2.2 mCi? How long (days) would it take for a 70 mCi dose to decay to an activity of 2.2 mCi?
old-198 is a β emitter used to treat leukemia. It has a half-life of 2.7 days. The dosage is 1.0 mCi/kg body weight. How many half lives must pass for a 70 mCi dose to decay to 2.2 mCi? How long (days) would it take for a 70 mCi dose to decay to an activity of 2.2 mCi?
Chapter19: The Nucleus: A Chemist's View
Section: Chapter Questions
Problem 76CWP
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Gold-198 is a β emitter used to treat leukemia. It has a half-life of 2.7 days. The dosage is 1.0 mCi/kg body weight.
How many half lives must pass for a 70 mCi dose to decay to 2.2 mCi?
How long (days) would it take for a 70 mCi dose to decay to an activity of 2.2 mCi?
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