February 25, 2017

Homework Help: chemistry

Posted by Emily on Sunday, September 2, 2012 at 6:09pm.

A 12.8 g sample 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 21.3 g.
What was the mass of iron in the sample of
Answer in units of g

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