Posted by GeneralChem on Sunday, January 20, 2013 at 10:40am.
mols Cr = grams/atomic mass.
Using the coefficients in the balanced equation, convert mols Cr to mols Al
Do the same to determine mols Cr2O3.
Now convert mols Al and mols Cr2O3 to grams by g = mols x molar mass.
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