Question

Calculate the amount of kcl which must be added to 1kg of water so that the freezing point is depressed by 2k

Answer 1

Answer:

149 grams.

Explanation:

Depression in freezing point is defined as the cryoscopic constant for unit molal.

ΔT= K×molality×(vant hoff factor)

here KCl is a electrolyte for pure dissociation. So, i=1.

so, now formula gives answer.