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258 solutions

The Colligative Properties

Q. A solution is made by dissolving 0.695 mol of nonelectrolyte solute in 839 g of benzene. Calculate the freezing point, Tf and boiling point, Tb, of the solution. Constants can be found in the table of colligative constants.

Solved • Feb 17, 2020

The Colligative Properties

Q. Determine the vapor pressure in torr of the solution when 41 g of a non-volatile, nonelectrolyte substance X with molar mass of 210 g is dissolved at in 100 g of ethanol at 298 K. Please note that ethanol has molar mass of 46.07 g/mol and vapor pressure of 58.9 torr at 298 K.

Solved • Feb 14, 2020

The Colligative Properties

Q. out of three 1.5m solutions of glucose, sodium sulfate and ammonium phosphate which will have the lowest boiling point highest freezing point and lowest vapor pressure. Why?

Solved • Feb 13, 2020

The Colligative Properties

Q. List the following aqueous solutions in order of decreasing boiling point. 0.120 m glucose, 0.050 m LiBr, 0.050 m Zn(NO3)2. Rank items in order of decreasing boiling point.

Solved • Feb 7, 2020

The Colligative Properties

Q. Which of the following liquids will have the highest freezing point? a) pure H2O b) aqueous glucose (0.050 m) c) aqueous Col2 (0.030 m) d) aqueous FeI3 (0.030 m) e) aqueous NaI (0.030 m)

Solved • Feb 7, 2020

The Colligative Properties

Q. Which of the following actions will raise the osmotic pressure of a solution? a) adding more solvent b) increasing the temperature c) decreasing the temperature d) decreasing the solute concentration e) none of the above

Solved • Feb 7, 2020

The Colligative Properties

Q. A dilute aqueous solution of an organic compound soluble in water is formed by dissolving 2.35 g of the compound in water to form 0.250 L solution. The resulting solution has an osmotic pressure of 0.605 atm at 25 °C. Assuming that the organic compound is a nonelectrolyte, what is its molar mass?

Solved • Feb 7, 2020