`100 g` of water contains `1.0 g` urea and `2.0 g` sucrose at `298 K`. The vapour pressure of water at `298 K` is `0.3 atm`. Calculate the vapour pressure of the solution. (Molecular weight of urea =`60`, Molecular weight of sucrose = `342`)

Explanation

To calculate the vapor pressure of the solution containing urea and sucrose dissolved in water, we can use Raoult's law. Here’s a step-by-step solution:

### Step 1: Calculate the moles of solute (urea and sucrose)

1. **Moles of Urea**:
\[ \text{Moles of Urea} = \frac{\text{mass of urea}}{\text{molar mass of urea}} = \frac{1 \text{ g}}{60 \text{ g/mol}} = 0.01667 \text{ mol} \]
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