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Homework Help: Chemistry e

Posted by Kaye on Tuesday, January 18, 2011 at 6:05pm.

The rusting of iron is represented by the equation 4Fe +3O2 --> 2Fe2O3. If you have a 1.50-mol sample of iron, how many moles of Fe2O3 will there be after the iron has rusted completely?

a. 0.50 mol
b. 0.75 mol
c. 1.0 mol
d. 1.50 mol
e. 2.0 mol

--> I got "b" using ratios..is that correct?

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