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August 27, 2015

Homework Help: AP Chem

Posted by Chandler on Wednesday, August 24, 2011 at 9:08pm.

An ore contains Fe3O4 and no other iron. The iron in a 51-gram sample of the ore is all converted by a series of chemical reactions to Fe2O3. The mass of Fe2O3 is measured to be 21.9 g. What was the mass of Fe3O4 in the
sample of ore?

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