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November 28, 2014

Homework Help: chemistry

Posted by Mely on Friday, September 10, 2010 at 12:08am.

Calculate the mass, in grams, of each of the following.

a) 1.210^23 gold atoms

b) 2.7810^22 helium atoms

c) 2.010^23 lead atoms

d) 7.610^21 uranium atoms

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