A solution contains only hexane and chloroform. If the mole fraction of hexane is Xites=0368, what is the vapor pressure above the son at 25C? The vapor pressure of pure hexane is 151 mm Hg at 25C and the vapor pressure of pure chloroform is 194 mm Hg at 25C O 127 mm Hg 178 mm Hg 55.6 mm Hg 167 mm Hg 123 mm Hg