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September 19, 2014

September 19, 2014

Posted by **Shay** on Monday, September 24, 2012 at 10:09am.

- Chemistry -
**bobpursley**, Monday, September 24, 2012 at 10:48am1/8=e^-.693t/5630

4730 ln(1/8)=-.693t

solve for t

another way:

1/8=(1/2)^t

t=3 halflives

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