Chapter 13, Problem 34E

Interpretation Introduction

Interpretation:

The minimum temperature to recrystallize a sample containing ${\text{15 g K}}_{\text{2}}{\text{Cr}}_{\text{2}}{\text{O}}_{\text{7}}$ in $\text{50 g water}$, at $\text{15}°\text{C}$ is to be determined.

Concept Introduction:

Solubility is defined as the amount of substance that can dissolve in certain amount of solvent at a given temperature.

A saturated solution consist of the maximum amount of solute that can be dissolve in the given solvent at a particular temperature.

Solubility of solids in water increases with increase in temperature.

To recrystallize a solid, it is dissolved in a solvent at higher temperature to prepare its supersaturated solution.