What is the mole fraction of solute in 2.5m aqueous solution .

Explanation

We are given that
The molality of the solution (m) = 2.5 m, i.e., 2.5 moles of solute is present in 1000 g of water.
`"Mole fraction of solute"=("Moles of solute")/("Moles of solute + Moles of water")=2.5/(2.5+1000/(18))`
`=2.5/(2.5+55.5)=2.5/(58)=0.43`