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OpenStudy (anonymous):

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?

OpenStudy (anonymous):

If something has a half-life of 8.0 hours, that'd mean the amount would be halved in 8.0 hours. A day has 24 hours, which means the amount would be halved three times. ;)

OpenStudy (anonymous):

= (192) (1/2)^3 remaining, so (192 - this) decayed.

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