2. Which of the following substances is hydrophilic?
salt cream soy sauce sugar all of the above
3. Which of the following are colligative properties?
Boiling Point Elevation Freezing Point Depression Osmotic Pressure Vapor Pressure Law All of the above
4. A solution is made by dissolving 25.8 g urea (CH4N2O) a nonelectrolyte, in 275 g water. Calculate the vapor pressure at 25oC (Vapor pressure of water at 25oC is 23.8 torr)
97 torr 23.2 torr 23.8 torr 0.97 torr 24 torr
5. 64 g of a nonvolatile nonelectrolye is dissolved in 2705 g H2O.
11 g 22 g 44 g 66 g 5 g
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