1. The decay of antimony-131 is first order. What is the value of the rate constant...

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Question

1. The decay of antimony-131 is first order. What is the value of the rate constant (in 1/min) if the half life is 23.49 minutes?

2. The decay of carbon-14 is first order with a half life is 5929 years. How much of 1.1934 g sample would remain after 9024 years?

3. The decay of carbon-14 is first order. What is the value of the rate constant (in 1/year) if the half life is 5542 years?

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