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CGP EDU Academic Team
Published on: August 14, 2026
0.15 g of a substance dissolved in 15 g of solvent boiled at a temperature higher by 0.216°C than that of the pure solvent. The molecular weight of the substance is [Given: Molal elevation constant for the solvent is 2.16 Kkg mol -1 ]
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100
Here it is given that w = 0.15 g, 
T b = 0.2 1 6° C
W = 15 g, K b = 2.16 Kkg mol -1
Substituting values in the expression, 
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