Chapter 17, Problem 124AE

Interpretation Introduction

Interpretation:

The boiling point of a solution containing 35.0 g of a non-electrolyte in 600 g water needs to be deduced given that the boiling point of pure water is 99.725°C and molar mass of the compound is 58.0 g/mol.

Concept Introduction:

The elevation in boiling point ( ${\text{ΔT}}_{\text{b}}$ ) of a solution in the presence of a solute of molality ( m ) is given as:

  $\begin{array}{l}{\text{ΔT}}_{\text{b}}{\text{ = T}}_{\text{b}}-{\text{T}}_{\text{b}}^{\text{0}}\\ {\text{ΔT}}_{\text{b}}{\text{=i(K}}_{\text{b}}\text{×m) ----(1)}\end{array}$

Here,

  ${\text{ΔT}}_{\text{b}}$ and T_b are the boiling points of the pure solvent and solution respectively.

K_b denotes the boiling point elevation constant.