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Question
If the molality of a dilute solution is doubled, the value of the molal elevation constant (Kb) will be ______.
Options
halved
tripled
doubled
unchanged
Solution
If the molality of a dilute solution is doubled, the value of the molal elevation constant (Kb) will be unchanged.
Explanation:
The value of the molal depression constant, Kf, is constant for a specific solvent; it does not rely on the molality of the solution, hence it remains constant when the molality of the dilute solution is doubled.
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