Cyclohexane has a normal boiling point of 80.72 °C. The solution described in Exercise 12.67 boils at 81.94 °C. Find the boiling-point elevation constant for cyclohexane.

Exercise 12.67

The freezing point of cyclohexane is 6.50 °C. A solution that contains 0.500 g phenol (molar mass = 94.1 g/mol) in 12.0 g cyclohexane freezes at -2.44 °C. Calculate the freezing-point depression constant for cyclohexane.