Question

Calculate the freezing point of a solution containing 0.5 g KCl (Molar mass = 74.5 g/mol) dissolved in 100 g water, assuming KCl to be 92% ionized. Kf of water = 1.86 K kg / mol.

Answer 1

KCl → K+ + Cl-

n = 2

i = 1 - α + nα

i = 1 + α