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August 2, 2015

Homework Help: chemistry

Posted by twynna on Tuesday, February 8, 2011 at 2:59pm.

Calculate the number of moles and atoms.
A)64 gm of O2
B)58.9gm of CI
C)90.5gm of (NH4)2SO4
D)243gm of Mg2

Please help i have NO CLUE HOW TO DO THIS THANKS!!!

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