JEE Advanced 2014 Chemistry question
A compound with molar weight of 80 g is dissolved in a solvent having density of 0.4 g ml⁻¹. Assuming no change in volume upon dissolution, the molality of a 3.2 molar solution is
Answer: 8
Solution
Take 1 L of solution: it contains 3.2 mol of solute. Since the volume does not change on dissolution, the
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