Calculate the mass of aluminium oxide which contains double the number of oxygen atoms in 192 g of oxygen gas.

Explanation

To solve the problem of calculating the mass of aluminium oxide (Al₂O₃) that contains double the number of oxygen atoms in 192 g of oxygen gas (O₂), we can follow these steps:

### Step 1: Calculate the number of moles of oxygen gas in 192 g
The molecular weight of oxygen gas (O₂) is 32 g/mol (16 g/mol for each oxygen atom).

\[ \text{Number of moles of O}_2 = \frac{\text{mass}}{\text{molecular weight}} = \frac{192 \, \text{g}}{32 \, \text{g/mol}} = 6 \, \text{moles of O}_2 \]
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