colligative properties 2

What characteristic defines a colligative property?

• It depends on the identity of the solute particles.

• It depends on the concentration of the solute particles.

• It depends on the temperature of the solvent.

• It depends on the pressure of the solution.

What happens to the boiling point of a solution when solute particles are added?

• It decreases.

• It remains unchanged.

• It elevates (increases).

• It first decreases then increases.

How does increasing the concentration of solute particles affect the vapor pressure of a solution?

• It increases the vapor pressure.

• It decreases the vapor pressure.

• It has no effect on the vapor pressure.

• It first increases, then decreases the vapor pressure.

How does increasing the concentration of a solute affect the boiling point, osmotic pressure, vapor pressure, and freezing point of a solution?

• Boiling point increases, osmotic pressure increases, vapor pressure decreases, freezing point decreases.

• Boiling point decreases, osmotic pressure decreases, vapor pressure increases, freezing point increases.

• Boiling point increases, osmotic pressure decreases, vapor pressure increases, freezing point decreases.

• Boiling point decreases, osmotic pressure increases, vapor pressure decreases, freezing point increases.

• 102.7°C
• 98.6°C
• 105.0°C
• 100.5°C

What is the freezing point of a solution formed by dissolving 400g of AlCl3 in 1600g of water, given that the cryoscopic constant (Kf) for water is 1.86 °C·kg/mol?

• -13.95 °C

• -7.44 °C

• 13.95 °C

• 7.44 °C