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Iron-59 is used to study iron metabolism in the spleen. Its half-life is 44 days. How many days would it take a 28.0 g

Iron-59 is used to study iron metabolism in the spleen. Its half-life is 44 days. How many days would it take a 28.0 g sample of iron-59 to decay to 3.50 g? number of days: II

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