59. What is the mole fraction of the solute in 2.5 molal aqueous solut – InterviewSolution

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59. What is the mole fraction of the solute in 2.5 molal aqueous solution ?0.0430.053C) 0.063D) 0.073

Answer»

2.5 molal aqueous solution means 2.5 moles of solute in 1 kg solvent(water)

so, moles of solute=2.5

moles of water=1000/18=55.55(approx)

so mole fraction = 2.5/(2.5+55.55)=.043

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