25 molal an aqueous solution of nonvolatile solute (molar mass = 3 40 g / mol ) is partially dried and it is found that 50% by mass of water has been removed. % by mass of H 2 O present in partial

Question

25 molal an aqueous solution of nonvolatile solute (molar mass = 3 40 ​ g / mol ) is partially dried and it is found that 50% by mass of water has been removed. % by mass of H 2 ​ O present in partially dried solution is :

TestHub · Accepted Answer

Let solution contains 1 kg water which contains 25 mole solute. After drying the solution. Weight of water = 500 gm ∴ Percentage Weight of H 2 ​ O = 500 + ( 25 × 3 40 ​ ) 500 ​ × 100

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