Chemistry · Solutions
A student prepared two solutions of equal molality using the same solvent (benzene), but different solutes: - Solution A: Non-volatile, non-electrolyte solute (e.g., naphthalene) - Solution B: Electrolyte solute that dissociates completely into 2 ions (e.g., KCl) The student observed that the vapour pressure of Solution A was higher than that of Solution B, and the pure solvent had the highest vapour pressure among the three. Based on these observations, which of the following conclusions are valid? (a) Vapour pressure lowering is directly related to the number of solute particles. (b) Raoult's law is not applicable for electrolyte solutions. (c) Colligative properties depend on the van't Hoff factor (i).
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1(a) and (c) only✓
- 2(b) and (c) only
- 3(a), (b), and (c)
- 4(a) only
Correct answer
(a) and (c) only
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