posted by caroline .
Aluminum metal reacts with iron(III) oxide to produce aluminum oxide and iron metal.
(a) How many moles of Fe2O3 are required to completely react with 55 g Al?
(b) How many moles of Fe are produced by the reaction of 3.00 mol Fe2O3 and 97.7 g Al?
(c) How many atoms of Al are required to produce 7.8 g Fe?
Here is an example I posted for stoichiometry problems.