Chapter 14, Problem 96IAE

Nitrobenzene, ${\text{C}}_{\text{6}}{\text{H}}_{\text{2}}{\text{NO}}_{\text{2}}$ , and benzene, ${\text{C}}_{\text{6}}{\text{H}}_{\text{8}}$ , are completely miscible in each other properties of the two liquid are nitrobenzene: $\text{fp=5}{\text{.7°C,K}}_{\text{t}}\text{=8}\text{.1°C}\text{kg}{\text{mol}}^{\text{-1}}$ ; benzene: $\text{fp=5}\text{.5}°{\text{C, K}}_t\text{=5}\text{.12}°\text{Ckg}{\text{mol}}^{-1}$ . It is possible to prepare two different solutions with these two liquids having a freezing point of $0.0°\text{C}$ . What are the compositions of these two solutions, expressed as mass percent nitrobenzene?