An aqueous solution of urea has a freezing point of -0.42 °C. Predict the osmotic pressure of the same solution at 32 °C. Assume
that the molar concentration and the molality are numerically
equal. (k, = 1.86 •C/m)

The density of the solid phase of a substance is 0.90 g/cm3 and the density of the liquid phase is 1.0 g/cm3. a large increase in pressure will a. lower the freezing point b. raise the freezing point c. lower the boiling point d. raise the triple point e. lower the triple point