Question

The mole fraction of ethanol in water is
0.5. The molality of the solution is
(a) 370
(b) 22.2
(C) 18.4
(d) 55.55​

plz answer with steps for solving

Answer 1

Answer:

d - 55.55m

Explanation:

let 1 mole solution be present so it will have 0.5 mole ethanol & 0.5 mole water.

mass of water(solvent)= 0.5*18 g

Molality=moles of solute/mass of kg in solvent= 0.5*1000/0.5*18= 55.55m