Asked by Naman

In the aqueous solution of H2SO4 its mole fraction is 0.2 then closest value of molality of
solution is
(1) 13.9 (2) 9.8
(3) 10.2 (4) 11.2

Answers

Answered by DrBob222
XH2SO4 = 0.2 so
XH2O = 0.8

Take 1 mol of the solution. That will contain 0.8 mols H2O. How many grams is that?
0.8 mol x 18 gH2O/mol = 14.4 g or 0.0144 kg.
molality = mols H2SO4/kg solvent
0.2/0.0144 = ?m
Answered by Naman Goyal
13.9
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