Assuming equal concentrations and complete dissociation, rank these aqueous solutions by their freezing points.

CoCl3 K2CO3 KNO3

3 answers

The equation is delta T = i*Kf*m
i = van't Hoff factor which is the number of particles. CoCl3 is 4, K3CO3 is 3, KNO3 is 2.
Kf is a constant
The problem tells you m is constant, so.....
DrBob222,
you put K3CO3 not K2CO3
Highest freezing point:
KNO3
K2SO4
CoCl3
Lowest freezing point