Depression of the Freezing Point of a Solvent
We need two pieces of information to calculate the depression of the freezing point of the solvent in a solution containing a nonvolatile nonelectrolyte:
We use the following equation to calculate a freezing point depression. (Note: This equation assumes the freezing point depression constant has a positive value.)
Freezing Point of a Solution
The freezing point of the solvent in a solution containing a nonvolatile nonelectrolyte, Tsolution, may be found from the following information:
Note: The freezing point of a solution will always be lower than the freezing point of the pure solvent.