[franco305]

A solution is prepared from 75.0 g of a nonvolatile, nondissociating solute and 85.0 g of water. The vapor pressure of the solution at 60°C is 132 torr. The vapor pressure of water at 60°C is 150. torr. What is the molar mass of the solute?

10.6 g/mol
56.8 g/mol
182 g/mol
77.7 g/mol
32.2 g/mol


I keep getting 1.40 g/mol

[Borek]

Show how you got this number and we will start from there.