posted by N COMAS .
1. What is the vapor pressure at 25°C of a solution of 1.20g of nephtalene C10H8 in 25.6g of benzone C6H6? The vapor pressure of pure benzene at 23°C is 86.0mmHg the vapor pressure of naphthalene can be neglected. Calculate the vapor pressure lowering of the solution.
2. A solution was prepared by dissolving 0.834g of sulfur, S8 in 100.0g of acetic acid HC2H3O2. Calculate the freezing point and the boiling point of the solution.
I answered this for you at your first post quite some time ago.