Quiz | Colligative Properties of Solutions
Which factor does not affect the solubility of a solid in a solvent?
Nature of the solvent
Nature of the solute
Pressure
Temperature
A solid is more soluble at higher temperatures and in a solvent with similar types of intermolecular forces
Which of the following is incorrect?
Gas are more soluble at higher pressure
Gas are more soluble as temperature increases
Solubility of a gas is proportional to the pressure of the gas
Henry’s law constant depends upon the gas, the solvent and the temperature
How is the vapor pressure of a solution compared to the vapor pressure of the pure solvent?
Lower
Equal
Greater
It depends on the temperature
Vapor pressure of the solution < Vapor pressure of the pure solvent
Which of the following colligative properties arises in systems where there is an equilibrium between 2 liquid solution phases?
Osmotic pressure
Boiling point elevation
Freezing point depression
Lowering of vapor pressure
Osmotic pressure is the minimum pressure which needs to be applied to a solution to prevent the inward flow of its pure solvent across a semipermeable membrane
What is the van’t Hoff i-factor for Ba(OH)2 (s) dissolved in water?
0
1
2
3
van’t Hoff i-factor = number of ions produced per formula unit
Ba(OH)2 (s) Ba2+ (aq) + 2 HO- (aq) ⇒ 3 ions are produced when Ba(OH)2 is dissolved in water
What is a semipermeable membrane in the context of osmosis?
A membrane that allows both solute and solvent particles to pass through it
A membrane that allows solvent, but not solute particles, to pass through it
A membrane that allows neither solute nor solvent particles to pass through it
A membrane that allows solute particles, but not solvent particles, to pass through it
Osmosis: movement of solvent particle through a semipermeable membrane while the solute particles stay within their respective solutions