Calculate relative lowering of vapour pressure of 0.161 molal aqueous solution

Explanation

To calculate the relative lowering of vapor pressure of a 0.161 molal aqueous solution, we will follow these steps:

### Step 1: Understand the formula for relative lowering of vapor pressure
The relative lowering of vapor pressure can be expressed as:
\[ \frac{P_0 - P}{P_0} = \frac{n_{solute}}{n_{solvent}} \]
where \(P_0\) is the vapor pressure of the pure solvent, \(P\) is the vapor pressure of the solution, \(n_{solute}\) is the number of moles of solute, and \(n_{solvent}\) is the number of moles of solvent.
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