The freezing point of a 1 molar nonelectrolyte such as ethylene glycol is -1.86:^circ C . What is the freezing point in degrees C of a 1.79 molar potassium chloride solution?

The freezing point of a 1 molar nonelectrolyte such as ethylene glycol is   .  What is the freezing point in degrees C of a 1.79 molar potassium chloride solution?

 

Calculate the osmolarity of a solution made from a 1.876 % (m / v) solution of KBr dissolved in water.