2 gm each of two non-volatile solutes A and B (molar mass of A B ) are dissolved separately in 50 gm each of same solvent. Which is true about the solutions?

Question

2 gm each of two non-volatile solutes A and B (molar mass of A > B ) are dissolved separately in 50 gm each of same solvent. Which is true about the solutions?

TestHub · Accepted Answer

T b ​ = k b ​ 1000 w ​ M m ​ ​ m = 2 g m . w = 50 g m k b ​ is constant as same solvent is used Since the same solvent is used, m k ​ b is constant. Hence, Δ T b ​ ∝ M 1 ​ . As M A ​ > M B ​ , it follows that ( Δ T b ​ ) B ​ > ( Δ T b ​ ) A ​ .

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