1.) The molar mass of CaCl2 is 110.98 g. By how many degrees would the freezing point decrease in a solution of 0.420 kg of water containing 12.98 g of CaCl2? The Kf of water is 1.86C/m, and the van 't Hoff factor of CaCl2 is 3. 2.) While they are two distinct phenomena, boiling point elevation and vapor pressure lowering are related colligative properties. Explain how the vapor pressure of a solvent being lowered when solutes are dissolved in it contributes to the boiling point necessarily needing to be a higher temperature.