The freezing point of a 0.500 M solution of sugar and a 0.500 M solution of KCl in water would be the same.

Question

Quizplus · Accepted Answer

The freezing point depression of a solution depends on the number of particles in solution. KCl dissociates into two ions (K+ and Cl-), effectively doubling the number of particles compared to the sugar solution, which does not dissociate. Therefore, the freezing point of the 0.500 M KCl solution would be lower than that of the 0.500 M sugar solution.

The Freezing Point of a 0