What is the total number of moles of aluminum oxide that can be formed when 54 grams of aluminum reacts completely with oxygen?

1.0 mol

Explanation:

Let's consider the synthesis of aluminum oxide.

2 Al + 1.5 O₂ → Al₂O₃

The molar mass of Al is 27 g/mol. The moles represented by 54 g of Al are:

54 g × (1 mol/ 27 g) = 2.0 mol

The molar ratio of Al to Al₂O₃ is 2:1. The moles of Al₂O₃ are:

2.0 mol Al × (1 mol Al₂O₃/2 mol Al) = 1.0 mol

1.0 mol of Al₂O₃ is formed.

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