The vapor pressure of pure water at 297 K is 2951.3 Pa. The vapor forms an ideal gas. a. In some oil, the equilibrium concentration of water molecules is only 1% as large as in pure water. Suppose that the pure water is covered with a layer of that oil. What's the equilibrium vapor pressure of water above the oil layer?
b. What's the vapor pressure of water at 297 K above a sugar solution in which 1/28 of the molecules are sugars, not water?