A molal solution is one that contains one mole of solute in
A.
1000 g of solvent
B.
1.0 L of solvent
C.
1.0 L of solution
D.
22.4 L of solution
Show answer and solution
Correct option: A
Solution
Molality is defined as moles of solute per kilogram (1000 g) of solvent. Unlike molarity, it is independent of temperature and volume, making solvent mass (not solution volume) the key reference. Hence, a 1 molal solution contains 1 mole of solute dissolved in 1000 g of solvent.
[1986]
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