Solution Concentration and Colligative Properties

When CH₃OH is dissolved in water, how many particles are in solution for each unit?

• 1

• 3

• 4

• 5

• 6

When KCl (potassium chloride) is dissolved in water, how many particles are in solution for each unit?

• 1

• 2

• 3

• 4

• 6

When CaBr₂ is dissolved in water, how many particles will be in solution for each unit?

• 1

• 2

• 3

• 4

• 5

At the same concentration, which salt will have the largest effect on the freezing point?

• C₂H₄O₂

• H₂S

• LiBr

• CaF₂

What type of substance dissolves in water but does not form ions or conduct electricity?

• electrolyte

• nonelectrolyte

• saturated

• insoluble

Colligative properties depend on the _____ of solute particles in solution.

• type
• number
• pH
• nature

The freezing point of a solution is ____ the freezing point of the pure solvent.

• the same as
• lower than
• higher than
• no relation to

The boiling point of a solution is ______ the boiling point of the pure solvent.

• higher than
• the same as
• lower than
• higher or lower than

Adding a nonvolatile solute to a liquid will ___.

• depress both the freezing point and the boiling point

• elevate both the freezing point and the boiling point

• depress the freezing point and elevate the boiling point

• elevate the freezing point and depress the boiling point

Electrolytes have a greater effect on colligative properties than nonelectrolytes do because electrolytes

• are volatile

• have higher boiling points

• produce fewer moles of solute particles per mole of solvent

• produce more moles of solute particles per mole of solvent