A gas cylinder contains `12 xx 10^(24)` molecules of oxygen gas.
If Avogadro's number is `6 xx 10^(23)`. Calculate :
The mass of oxygen present in the cylinder.

Explanation

To solve the problem of calculating the mass of oxygen gas in the cylinder, we can follow these steps:

### Step 1: Identify the given data
- Number of molecules of oxygen gas (O₂) = \(12 \times 10^{24}\)
- Avogadro's number (Nₐ) = \(6 \times 10^{23}\)

### Step 2: Calculate the number of moles of oxygen
We can use the formula that relates the number of molecules to the number of moles:
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