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July 24, 2014

July 24, 2014

Posted by **Molly** on Wednesday, December 5, 2012 at 4:13pm.

- Physical Science- Help Please! -
**Steve**, Wednesday, December 5, 2012 at 4:14pm192 days is 6 half-lives.

(1/2)^6 = 1/64

1/64 * 100 g = 1.5625 g

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