Calculate the vapour pressure of 10% (w/w) aqueous glucose solution at `30^@C`, if vapour pressure of pure water is 31.8 mm.

Explanation

To calculate the vapor pressure of a 10% (w/w) aqueous glucose solution at 30°C, we can use Raoult's Law, which states that the vapor pressure of a solution is directly proportional to the mole fraction of the solvent in the solution.

### Step-by-Step Solution:

1. **Identify Given Data**:
- Vapor pressure of pure water (P₀) = 31.8 mmHg
- Mass of glucose (solute) = 10 g
- Mass of water (solvent) = 90 g (since it's a 10% w/w solution)
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