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23 October, 09:35

A certain radioisotope has a half-life of 8.0 hours; how much of a 192 g sample of this radioisotope would decay after a full day?

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  1. 23 October, 11:46
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    If the half-life is 8.0 hours and there are 24 hours in a day, the radioisotope reaches its half-life 3 times.

    Therefore, after a full day, there are 24 g of the sample left, and 168 g has decayed.
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