Calculate the freezing point of a water solution at each concentration.

(a) 0.85 m

(b) 1.45m

(c) 4.8 m

(d) 2.35 m

We have to calculate the freezing point of a water solution at each concentration.

Step 1

(a) 0.85 m

Molarity of solution = 0.85 m

Tf = (molarity) (1.86 oC kg/mol)

Tf = (0.85m) (1.86 oC kg/mol) = 1.6oC

Hence Tf = 0-1.6 oC = -1.6 oC

Thus the freezing point of water is -1.6 oC