a) Cyclohexane has a freezing point of 6.50 and a of 20.0. Explain what is the freezing point of a solution made by dissolving 0.771 of biphenyl() in 25.0 of cyclohexane? State the temperature numerically in degrees Celsius.
b) Paradichlorobenzene is a component of mothballs. A solution of 2.00 in 22.5 of cyclohexane boils at 82.39. The boiling point of pure cyclohexane is 80.70. Compute for cyclohexane. Express the constant numerically in degrees Celsius per molal.