Calculate the Freezing Point of a Solution Containing 20 Grams

Multiple Choice

Calculate the freezing point of a solution containing 20 grams of KCl and 2200.0 grams of water.The molal-freezing-point-depression constant ( ) for water is (Assume 100% ionization of KCl.)

A) -0.45 °C
B) +0.45 °C
C) -0.23 °C
D) +0.23 °C
E) 1.23 °C