Asked by Anonymous

If 45.3 grams of aluminum react with an excess of oxygen, as shown in the balanced chemical equation below, how many grams of aluminum oxide can be formed?

4Al + 3O2 2Al2O3

Answers

Answered by DrBob222
Follow the steps in this example.
http://www.jiskha.com/science/chemistry/stoichiometry.html
Answered by Anonymous
1. 4Al + 3O2 = 2Al2O3
2. Set the equation. mol ratio is 4:2
45.3 g Al * (1 mol Al / 26.982 g Al) * (2 mol AlO / 4 mol Al) * (101.964 g AlO / 1 mol AlO)
= 85.63 g Al2O3
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