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PART B When exposed to air, aluminum metal, Al, reacts with oxygen, O2, to produce a...

PART B

When exposed to air, aluminum metal, Al, reacts with oxygen, O2, to produce a protective coating of aluminum oxide, Al2O3, which prevents the aluminum from rusting underneath. The balanced reaction is shown here: 4Al+3O2→2Al2O3

Part A: What is the theoretical yield of aluminum oxide if 2.80 mol of aluminum metal is exposed to 2.40 mol of oxygen?

ANSWER: 1.40 mol

Part B:

In Part A, we saw that the theoretical yield of aluminum oxide is 1.40 mol . Calculate the percent yield if the actual yield of aluminum oxide is 0.672 mol .

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