Given that the boiling point constant(Kb) of water is 0.512, what will be the boiling point of 2 liters of water that has 200 grams of CaCl2 added?

Question

Quizplus · Accepted Answer

The molar mass of CaCl2 is approximately 110 grams. Thus, 200 grams is 1.81 moles, and adding this to 2 liters of water results in a molarity of 0.9M. However, calcium chloride dissociates into three ions, so the molality is 2.7. ?T = Kb * N (where N is molality). Thus, ?T = 1.4 °C, so the new boiling point of water will be 101.4 °C.

Given That the Boiling Point Constant(Kb) of Water Is 0