A gas jar contains 1.6 g of sulphur dioxide gas at S. T.P. calculate no. of molecules [S = 32, O = 16]

Explanation

To calculate the number of molecules of sulphur dioxide (SO₂) in a gas jar containing 1.6 g of the gas at standard temperature and pressure (STP), we can follow these steps:

### Step 1: Calculate the Molecular Weight of Sulphur Dioxide (SO₂)
The molecular weight of sulphur dioxide can be calculated using the atomic weights of sulphur and oxygen.

- Atomic weight of sulphur (S) = 32 g/mol
- Atomic weight of oxygen (O) = 16 g/mol

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