Question

If mole fraction of ethanol (molar mass = 46 g/mole)
in its aqueous solution is 0.2 then molality of ethanol
in the solution is
(1) 13.89
(2) 12.52
(3) 15.11

(4) 22.22

Answer 1

Answer:

4)22.22

Explanation:

molality=weight/gram molecular weight*1000/weight of ethanol

46/46*1000/46=21.7391