Colligative Properties Worksheet
Explore colligative properties including vapor pressure lowering, boiling point elevation, freezing point depression, and osmotic pressure with this Grade 12 chemistry worksheet.
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Colligative Properties
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Read each question carefully and answer to the best of your ability. Show all work for calculations.
1. Which of the following is NOT considered a colligative property?
Vapor pressure lowering
Boiling point elevation
Surface tension
Osmotic pressure
2. Adding a non-volatile solute to a solvent will:
Increase its freezing point
Decrease its boiling point
Lower its vapor pressure
Increase its volatility
3. Colligative properties depend only on the of solute particles in a solution, not on their identity.
4. The phenomenon where the freezing point of a solvent is lowered by the addition of a solute is called .
5. The pressure required to stop osmosis across a semipermeable membrane is known as .
6. Explain why adding salt to water makes it boil at a higher temperature and freeze at a lower temperature.
7. Describe the process of osmosis and its importance in biological systems.
Observe the image below, which illustrates different types of mixtures. A solution is a homogeneous mixture where one substance dissolves in another, typically maintaining a uniform composition.
8. Based on your understanding of colligative properties, why are these properties most evident in true solutions rather than suspensions or colloids?
9. A solution with a higher concentration of solute particles will always have a lower osmotic pressure.
True
False
10. The van 't Hoff factor (i) accounts for the dissociation of ionic compounds in solution when calculating colligative properties.
True
False
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