Radioactive decay can be described by the following equation In A = ln Ao - kt...

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Radioactive decay can be described by the following equation In A = ln Ao - kt where Ao is the original amount of the substance, A is the amount of the substance remaining after time t, and is a constant that is characteristic of the substance. For the radioactive isotope lead-214, k is 2.59 x 10-2 minutes. If the original amount of lead-214 in a sample is 50.9 mg, how much time is needed for the amount of lead-214 that remains to fall to 38.1 mg? minutes Radioactive decay can be described by the following equation In A = ln Ao - kt where Ao is the original amount of the substance, A is the amount of the substance remaining after time t, and is a constant that is characteristic of the substance. For the radioactive isotope lead-214, k is 2.59 x 10-2 minutes. If the original amount of lead-214 in a sample is 50.9 mg, how much time is needed for the amount of lead-214 that remains to fall to 38.1 mg? minutes

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This is a problem of radioactive decay and the given equation is the natural logarithm form o... View the full answer