Tuesday
July 29, 2014

Homework Help: chemistry

Posted by rachel on Thursday, October 4, 2012 at 2:43pm.

a sample of sodium-24 with an activity of 12 mCi is used to study the rate of blood flow in the circulatory system. If sodium-24 has a half-life of 15 h, what is the activity of the sodium after 2.5 days. please show work.

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