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April 24, 2014

Homework Help: AP Chemistry

Posted by Gabriella on Friday, August 30, 2013 at 9:52pm.

A 40.3 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 10.5 grams. What was the percent iron in the sample of ore?
Answer in units of %

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