Mole fraction of a solute in 2 molal aqueous solution is

1.	Mole fraction of a solute in 2 molal aqueous solution is
Answer» 2 molal aq soln means 2 mole SOLUTE in 1000 GM WATER. So mole of water is 1000/18, so mole FRACTION of solute is Using formula (Xa= [{n(solute)}/ {n(solute)+ n(solvent)}] is [{2}/{(2)+(1000/18)}] = [{2}/{(2)+(55.55)}]= [(2)/(57.55)] = 0.03474 is the answer.

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