Posted by Jessica on Saturday, October 1, 2011 at 8:57pm.
You made a typo. It should read, Aluminum metal and iron(III) oxide...........give aluminum OXIDE and iron metal.....
I work these limiting reagent problems by solving TWO stoichiometry problems. First use grams Al and convert to moles iron assuming you had all of the iron oxide you need. Then use grams iron oxide assume you have all of the aluminum you need and convert to moles Fe. The answers for mols Fe will be different but the correct answer in limiting reagent problems is ALWAYS the smaller value and the substance providing that value is the limiting reagent. The other reagent is the one in excess.
Here is a worked example of the simple stoichiometry problem.
http://www.jiskha.com/science/chemistry/stoichiometry.html
Post your work if you get stuck.
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