Question

What is mole fraction of solute in 1molal solution

Answer 1

Given clearly that 1 molal of aqueous solution hence the solvent here is water.

Therefore 1 mole solute present in the 1 kg of water. Molefraction is the ratio of the number of moles of solute and total number of moles in solution.

Moles = (given mass) / (molar mass)

= 1000/18

= 55.5 moles