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April 21, 2014

April 21, 2014

Posted by **Krista** on Friday, September 7, 2012 at 9:32am.

Please answer quickly.

- chemistry -
**Steve**, Friday, September 7, 2012 at 10:34amg/cm^3 * cm^3 * atoms/g = atoms

or,

g/cm^3 * cm^3 ÷ g/atom = atoms

2.70 * (pi * .25^2 * 10) / (4.48*10^-23) = 1.18 * 10^23

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