Friday
April 18, 2014

Homework Help: AP chem

Posted by Anonymous on Sunday, August 25, 2013 at 11:40pm.

A 37.2 g of iron ore is treated as follows. The
iron in the sample is all converted by a series
of chemical reactions to Fe2O3. The mass of
Fe2O3 is measured to be 11.1 grams. What
was the percent iron in the sample of ore?
Answer in units of percent

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