A solution A has 10 gm of solute B dissolved in 2 moles of solvent. What is the mole fraction of the solute?
can't be determined
Mole fraction of solute cannot be determined because the structural formula of B is not known. So, the number of moles of B cannot be found.
∴(Mole fraction)solute=Moles of soluteMoles of solute+moles of solvent