The osmotic pressure of a dilute solution of KNO3 (i factor = 1.8) in water is 0.4697 atm when measured against water at 25 deg C. What would be the a. vapor pressure at 25 deg. C (the partial vapor pressure of water is 23.756 mmHg at this temperature) of the solution and vapor pressure lowering b. boiling point of the solution (Kb = 0.512) and boiling point elevation c. freezing point of the solution (Kf = 1.86) and freezing point depression

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The osmotic pressure of a dilute solution of KNO3 (i factor = 1.8) in water is 0.4697 atm when measured against water at 25 deg C. What would be the

a. vapor pressure at 25 deg. C (the partial vapor pressure of water is 23.756 mmHg at this temperature) of the solution and vapor pressure lowering

b. boiling point of the solution (Kb = 0.512) and boiling point elevation

c. freezing point of the solution (Kf = 1.86) and freezing point depression

reminder:

  1. Molarity will be equal to molality at 25 deg. C since it is an aqueous solution.
  2. 1 atm = 760 mmHg
  3. Rounding off: 2 decimal places in ALL OF YOUR ANSWERS 

Answers:

Molality: ___ moles/L

VP lowering: ___ mmHg

VP solution: ___ mmHg

Boiling point elevation: ___ deg. C

Boiling point solution: ___ deg. C

Freezing point depression: ___ deg. C

Freezing point solution: ___ deg. C

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