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Nuetrik [128]
3 years ago
9

How much of a 100.0 g sample of 198au is left after 8.10 days ifi its half life is 2.70 days?

Chemistry
1 answer:
Masja [62]3 years ago
6 0
8.10 days/ 2.70 days = 3 half-lives; divide 100 by 2, three times to get 12.5 g left after 3 half-lives


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