chistryKILLSme chistryKILLSme

24-01-2017
Chemistry

contestada

The half life of thorium – 233 is 24 days. If you have a 42.0 g sample of thorium – 24, how much will remain after 72 days?

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QUEZ1987 QUEZ1987

24-01-2017

14 GALLONS WILL BE LEFT I THINK

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joannapuga360 joannapuga360

25-01-2017

42.0g ---2.0g---6.0g---3.0g
24. 24. 24. = 72 days
Always want to divide the sample in half.

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