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How much Cu-61 (half-life about 3 hours) would remain from 2 mg sample after 6 hours?
Updated: 4/28/2022
Wiki User
∙ 7y agoBest Answer
6 hours = 2 half lives, thus 25 % would remain. 0.25 x 2 mg = 0.5 mg.
Done another way...
fraction remaining = 0.5^n where n = number of half lives = 6hr/3hr = 2
fraction remaining = 0.5^2 = 0.25
0.25 x 2 mg = 0.5 mg
Wiki User
∙ 7y agoThis answer is:
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anon
Lvl 10
∙ 3y ago0.5 mg
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