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174 solutions

The Colligative Properties

Q. A solution of an unknown nonvolatile, nonelectrolyte compound was prepared by dissolving 12.6 g of the unknown substance in 109 g of benzene. Vapor pressure of the resulting solution is 380. torr at 60 degree Celsius. Calculate the molar mass of the unknown compound if the vapor pressure of pure benzene is 391 torr at 60 degree Celsius.

Solved • Nov 24, 2019

The Colligative Properties

Q. Arrange the following aqueous solutions in terms of increasing boiling point temperature. ( Lowest—> Highest) 2.0 m NaCl, 2.0 m Sucrose (C12H22O11), 2.0 M Na3PO4, 2.0 m H2C2O4,

Solved • Nov 24, 2019

The Colligative Properties

Q. Which of the following aqueous solutions will have the highest vapor pressure at 25 degree Celsius? A. 0.10 m CaCl2 B. 0.10 m NaCl C. 1.0 m Sucrose (C12H22O11) D. 0.5 m H2C2O2 E. 0.10 m K3PO4

Solved • Nov 24, 2019

The Colligative Properties

Q. Calculate the vapor pressure of a solution made by dissolving 76.0 g of Sodium Chloride in 890. of water at 100 degree Celsius.

Solved • Nov 23, 2019

The Colligative Properties

Q. Which of the following solutions has the lowest freezing point?

Solved • Nov 23, 2019

The Colligative Properties

Q. A solution was made by dissolving 50.0 g of an unknown organic compound in 92.0 g of ethanol. If the boiling point of this solution is 82.1 degree Celsius and the normal boiling point of ethanol is 78.3 degree Celsius, what is the molar mass of the unknown compound? Kf= 1.99 degree C/m. Kb = 1.22 degree C/m.

Solved • Nov 23, 2019

The Colligative Properties

Q. What are the assumptions in using the following Raoult’s Law equation:

Solved • Nov 23, 2019