Unit 6: Solutions
- Which of the following laws applies to the solubility of gases in liquids?
- A) Raoult’s Law
- B) Henry’s Law
- C) Dalton’s Law
- D) Le Chatelier’s Principle
- Answer: B) Henry’s Law
- Which formula is used to calculate the boiling point elevation of a solution?
- A) ΔT_b = K_b × m
- B) ΔT_f = K_f × m
- C) ΔP = P_0 × X_solute
- D) π = i × C × R × T
- Answer: A) ΔT_b = K_b × m
- What is the primary factor affecting the osmotic pressure of a solution?
- A) The volume of the solution
- B) The temperature of the solution
- C) The concentration of solute particles
- D) The density of the solute
- Answer: C) The concentration of solute particles
- What happens to the vapor pressure of a solution when the solute concentration increases?
- A) Vapor pressure increases
- B) Vapor pressure decreases
- C) Vapor pressure remains the same
- D) Vapor pressure fluctuates
- Answer: B) Vapor pressure decreases
- What is the effect of adding a solute to a solvent on the boiling point of the solution?
- A) The boiling point decreases
- B) The boiling point increases
- C) The boiling point remains the same
- D) The boiling point fluctuates
- Answer: B) The boiling point increases
- Which type of solution would have the highest freezing point depression?
- A) 0.1 M NaCl
- B) 0.1 M KCl
- C) 0.1 M Glucose
- D) 0.1 M Na2SO4
- Answer: D) 0.1 M Na2SO4
- What is the effect of a non-volatile solute on the vapor pressure of a solvent?
- A) Increases vapor pressure
- B) Decreases vapor pressure
- C) No effect on vapor pressure
- D) Fluctuates vapor pressure
- Answer: B) Decreases vapor pressure
- What is the purpose of calculating the van ‘t Hoff factor in colligative property calculations?
- A) To determine the concentration of solute particles
- B) To determine the solubility of the solute
- C) To determine the temperature of the solution
- D) To determine the color of the solution
- Answer: A) To determine the concentration of solute particles
- Which factor does not influence the rate of dissolution of a solute?
- A) Temperature
- B) Stirring
- C) Surface area of solute
- D) Color of the solute
- Answer: D) Color of the solute
- What is the primary cause of colligative properties?
- A) The identity of the solute particles
- B) The concentration of solute particles
- C) The color of the solute
- D) The temperature of the solution
- Answer: B) The concentration of solute particles
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