The half-life of carbon-11 is 20.3 minutes. How much of a 100.0 mg sample remains after 1.6 hours?

Name: The half-life of carbon-11 is 20.3 minutes. How much of a 100.0 mg sample remains after 1.6 hours?
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Quizplus · Accepted Answer

The half-life formula is used to calculate the remaining amount: N = N0 * (1/2)^(t/T), where N0 = 100 mg, t = 1.6 hours = 96 minutes, and T = 20.3 minutes. Plugging in the values, N = 100 * (1/2)^(96/20.3) ≈ 3.77 mg.

The Half-Life of Carbon-11 Is 20