Question
1. Calculate the freezing point and the boiling point at 1 atm of a solution containing 30.0 g of cane sugar (MM= 342 g/mol) and 150 g water.
2. A solution containing 6.35 g nonelectrolyte dissolved in 500g of water freezes at -0.465°C. Determine the molecular weight of the solute.
3. The vapor pressure of a pure water at 26.0°C is 25.21 torr. The vapor pressure of a solution which contains 20 grams glucose, C6H12O6, in 70 grams water?
4. The average osmotic pressure of blood at 25°C is 7.7 atm. How many grams of glucose (C6H12O6) is needed to prepare a 110L solution that is isotonic with blood at 25°C?
5. A solution contains 5.0 g ethylene glycol, C2H4(OH)2, and 95 g water, H2O, by mass. The density of the solution is 1 g/mL. Find the a) freezing point of the solution b) osmotic pressure at 35°C.
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