Will the elevation in boiling points be same if $0.1$ mol of $N a C l$ or $0.1$ mol of sugar is dissolved in $1 L$ of water? Explain.

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Solution

The elevation in boiling point is calculated as
$△ T_{b} = i \times K_{b} \times m$
Here,
$i$ is the Vant Hoff Factor.
$K_{b}$ is the molal elevation constant
$m$ is molality

For $N a C l$ , the Vant Hoff factor comes out to be two as it is an ionic compound while for glucose the Vant Hoff factor is $1$ as it cannot dissociate in the solution. Therefore, elevation in boiling point would not be the same.

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