Question

The vapor pressure of water at 30 Celsius is 31.82 mmHg and the density is 0.9956 g/mL. What is the new pressure after adding enough sorbitol to make a 2.7 m solution?

Answer 1

2.7 m = 2.7 moles sorbitol/kg water.
P_soln = X_solvent*P^o_{pure solvent}