Asked by JOHN

How many moles of oxygen combined with aluminum to form 3.8 moles of AL2O3?
Answered by DrBob222
Write and balance the equation, then using the coefficients in the balanced equation to convert moles Al2O3 to moles Al. Here is some additional informaiton in a worked example of a stoichiometry problem.
http://www.jiskha.com/science/chemistry/stoichiometry.html
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