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August 28, 2015

Homework Help: Chemistry

Posted by Matt on Tuesday, July 20, 2010 at 2:04pm.

A sample of sodium-24 with an activity of 12 mCi is used to study the rate of blow flow in the circulatory system. If sodium -24 has a half-life of 15 hours, what is the activity of the sodium after 2.5 d ?

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