Aluminum Oxide

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In the reaction of aluminum metal and oxygen to make aluminum oxide, how many grams of oxygen gas will reac?

please help!

In the reaction of aluminum metal and oxygen to make aluminum oxide, how many grams of oxygen gas will react with 2.2 moles aluminum metal?

Al (s)+ O (g) ----> Al2O3

Balance the equation

4 Al + 302 ---> 2Al2O3

Oxygen is a diatomic

2.2 mol of al2o3 X 101.96 g al2o3 / 1 mol / 3 mol 0

(cancel mol's out)

= 224.312 g of al2o3 x 16.00 O2

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