Two solutions are boiled. The first is 1 mol of a sodium chloride(NaCl) solution forming two ions. The second one is 1 mol of calcium chloride (CaCl2) solution forming three ions. How will the boiling points of the two solutions compare?

please help me I really don't understand this, will give you a medal :)

Question

Two solutions are boiled. The first is 1 mol of a sodium chloride(NaCl) solution forming two ions. The second one is 1 mol of calcium chloride (CaCl2) solution forming three ions. How will the boiling points of the two solutions compare?

please help me I really don't understand this, will give you a medal :)

elcna · Answer

B is the molality of the solute and I is van 't Hoff factor, associated to electrolytes by dissociation 
 I = 1.9 for sodium chloride 
 I = 2.3 for calcium chloride 
So there is a higher boiling point for the CaCl2 solution