The mole fraction of a solvent in aqueous solution of a solute is The molality
of the aqueous solution is :
Mole Fraction -
It is ratio of moles of solute or moles of solvent to moles of solution.
- wherein
If a substance ‘A’ dissolves in substance ‘B’ and their number of moles are and
respectively; then the mole fractions of A and B are given as
Mole fraction of A = (number of moles of A)/(number of moles of solution ) = /(
+
)
We have,
Option 4)
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