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How much of a 100.0 g sample of Au is left after 8.10 days if its half-life is 2.70 days?
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How much of a 100.0 g sample of Au is left after 8.10 days if its half-life is 2.70 days?

User FGiorlando
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The amount left is about 12.5 g of Au
User Chyme
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