Question

A dilute electrolyte solution is prepared by dissoving iron (III) chloride in water. It is found to have a freezing point of -2.10 degrees C. Calculate the molality of the solution.

Answer 1

delta T = i*Kf*m
delta T is 2.10
i = 4 (FeCl3 gives 4 particles).
Kf is 1.86
solve for m