Multiple Choice
Which of the following best explains why colligative properties are affected differently when a volatile solute is used compared to a nonvolatile solute?
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14. Solutions
The Colligative Properties
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Which of the following is considered a colligative property?
A
Boiling point elevation
B
Viscosity
C
Density
D
Color
Verified step by step guidance1
Understand that colligative properties depend on the number of solute particles in a solvent, not on the type of particles.
Recall the common colligative properties: vapor pressure lowering, boiling point elevation, freezing point depression, and osmotic pressure.
Analyze each option: Viscosity, Density, and Color depend on the nature of the substance, not just the number of particles.
Recognize that boiling point elevation increases when a solute is dissolved in a solvent due to the lowering of vapor pressure, which is a colligative effect.
Conclude that boiling point elevation is the correct choice because it is a classic example of a colligative property.
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