Calculate the aqueous solution with the highest freezing point. These are all solutions of nonvolatile solutes and you should assume ideal Van't Hoff factors where applicable
a) .200 m Ca(ClO4)2
b).200 m K3PO3
c) .200 m HOCH2CH2OH
d) .200 m Ba(NO3)2
e) All of these have the same freezing point