Problem 64a

Given information

The mass of water in the solution is .

The freezing point of the solution is  .

Step-by-step explanation

The depression in the freezing point of water is as follows:

............................... 1

Here,

•   is the depression in freezing point.

•   is the normal freezing point of water.

•   is the freezing point of the solution.

The molality of the given solution is as follows:

     ............................................................ 2

Here,

•   is the depression in freezing point.

• is the van’t Hoff factor which describes the number of ions of solute particles in the solution.

• is the molality of the solution.

• is the molal freezing point depression constant .