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MHT CET Chemistry question

ChemistrySolutionsMHT CET

An aqueous solution of urea containing 18 g urea in 1500 cm of solution has a density of 1.052 g/cm. If the molecular weight of urea is 60, then the molality of solution is:

Answer: (B)

Solution

Mass of solution = 1500 × 1.052 = 1578 g, so water = 1578 − 18 = 1560 g and molality = 0.3 mol/1.560 kg =

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Question ID VK-041286