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181 solutions

The Colligative Properties

Q. Determine the vapor pressure of a solution at 55°C that contains 34.2 g NaCl in 375 mL of water. The vapor pressure of pure water at 55°C is 118.1 torr.

Solved • Jan 13, 2020

The Colligative Properties

Q. Calculate the vapor pressure of a solution made by dissolving 96.2 g of urea (molar mass = 60.06 g/mol) in 210.5 mL of water at 35°C. (Hint: The vapor pressure of pure water at 35°C is given in the table below. Assume the density of the solution is 1.00 g/mL.)

Solved • Dec 16, 2019

The Colligative Properties

Q. PQ-18. Which aqueous solution will have the lowest osmotic pressure? (a) 0.04 M MgCl2 (b) 0.05 M KBr (c) 0.1 M LiCl (d) 0.2 M Na2SO4

Solved • Dec 13, 2019

The Colligative Properties

Q. PQ-16. A technician has the measured osmotic pressure of a solution to determine the molar mass of a covalent solute. Which other information would need to be measured in order to determine the molar mass? I. Temperature II. Volume of solution III. Mass of solute (a) Only I (b) Only III (c) Only I and II (d) I, II and III

Solved • Dec 13, 2019

The Colligative Properties

Q. Which of the following would lead to an increase in the vapor pressure of a liquid? I. Increasing the temperature II. Adding a nonvolatile solute A) I only B) II only C) both I and II D) Neither I or II

Solved • Dec 11, 2019

The Colligative Properties

Q. calculate the osmotic pressure of a solution containing 15.0 grams of Ca(NO3)2 (molar mass=164.088g/mol) in 250.ml of solution at 25 degrees C assume complete dissociation Ca(NO3)2

Solved • Dec 8, 2019

The Colligative Properties

Q. Which on the following aqueous solutions has the lowest boiling point? Assume ideal van't Hoff factors, i.

Solved • Dec 7, 2019