4 g of `O_2` and 2g of `H_2` are confined in a vessel of capacity 1 litre at `0^@C`. Calculate
the number of moles of each gas

Explanation

To calculate the number of moles of each gas in the given problem, we can use the formula:

\[ \text{Number of moles} = \frac{\text{Given weight (g)}}{\text{Molar mass (g/mol)}} \]

### Step 1: Calculate the number of moles of \( O_2 \)

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