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The half-life for P-32 is 14.3 days. What fraction of a sample of P-32 will be left after 42.9 days?

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35jazzmin2027

Answer: At one half-life (14.3 days) 230 mg of the P-32 would remain. at two half-lives (14.3 + 14.3 or 28.6 days) 115 mg of the P-32 would remain. at three half-lives (14.3 + 14.3 + 14.3 or 42.9 days) 57.5 mg of the P-32 would remain.

Explanation:

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