Using Freezing Point to Identify an Unknown

Freezing-point depression can help identify an unknown compound. When a solid compound dissolves in a solvent, the freezing point of the solution becomes lower than the freezing point of the pure solvent. This change is linked to the molecular weight of the solute.

In this experiment, the unknown...

Freezing-point depression is the phenomenon that is observed when the freezing point of a solution is lower than that of the pure solvent.

This phenomenon results from interactions between the solute and solvent molecules. The difference in freezing temperatures is directly proportional to the number of solute particles dissolved in the so...