One use of CaCl 2 to salt roads in the winter. The equation that describes the change in freezing point of a solvent due to a solute is Delta T f =I* K f * mo molalityHow much would the freezing point decrease if a 3.23 molal (m) solution were achieved? (K f =1.86^ C/(mol/kg) for water and i = 3 for CaCl 2 )