Question

mole fraction of solute in 4.5 molal aqueous solution is ?

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Answer 1

Answer:

0.075

Explanation:

Mole fraction, x=mw+MWmw

(where, w and m represent the mass and molar mass of solute and W and M represent the mass and molar mass of solvent.)

x1=mwmw+MW

x1=1+M×wW×m×10001000

x1=1+M×m1000      (∵Molality,m=m×Ww×1000)

        =1+18×4.51000          (∵MolarmassofH2O=18gmol−1)

        =1+

Answer 2

Answer:

This is the molarity solution for your question. use it to solve