Interpretation:
The freezing point can be calculated by using the formula for depression in freezing point. Depression in freezing point is a colligative property which depends on the number of moles of solute.
Concept introduction:
Freezing point depression is a colligative property observed in solutions that results from the introduction of solute molecules to a solvent. The freezing point of solution is lower than that of the pure solvent and is directly proportional to the molality of the solute.
where is the freezing point depression, is the freezing point of the solution, is the freezing point of the solvent, is the freezing point depression constant, and m is the molality.
To determine: the freezing points for the given solutions.
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