Chapter 11, Problem 11.84SP

Interpretation Introduction

Interpretation:

The value of the vant Hoff factor for ${\text{K}}_{\text{2}}{\text{SO}}_{\text{4}}$ has to be calculated.

Concept introduction:

• Depression in freezing point:

  The freezing point the solution is decreases when the solute is dissolved in the solvent is called depression in freezing point.  It is one of the colligative Properties thus,

$\begin{array}{l}\text{ΔT}\text{=}\text{i}{\text{K}}_{\text{f}}{\text{m}}_{\text{solute}}\mathrm{......}(2)\\ \\ \text{ΔT is boiling-point elevation}\\ {\text{K}}_{\text{f}}\text{is}\text{molal freezing-point depression constant}\\ \text{m}\text{is }\text{molality of the solute}\\ \text{i}\text{is}\text{the}\text{van't Hoff factor}\end{array}$