Question

What is the mole fraction of solute in a 3.55 m aqueous solution?

Answer 1

Mole fraction = [ (Moles of Solute) / (Moles of Solute+Moles of Water) ]

given that, moles of Solute = 3.55

                moles of Water = 1000 / 18.02

                                     = 55.49

now, Mole fraction = [ (3.55) / (3.55+55.49) ]

                           = 3.55 / 59.04

                           = 0.06011854