A solution has a van't Hoff factor of 1.50, a freezing point constant of 1.86 °C/m, and a molality of 0.800 m. What is the change in freezing point?

• A. 0.800 °C
• B. 1.86 °C
• C. 1.50 °C
• D. 2.23 °C

Answer: (D)