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MHT CET Chemistry question

ChemistrySolutionsMHT CET

A 5.25% solution of a substance is isotonic with a 1.5% solution of urea (molar mass = 60 g ) in the same solvent. If the densities of both the solutions are assumed to be equal to 1.0 g , molar mass of the substance will be

Answer: (D)

Solution

Isotonic solutions have equal molar concentration: , so $M = 5.25×60/1.5 = 210\

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Question ID VK-061284