Question

15. Mole fraction of the solute in a 1.00 molal aqueous
solution is :
(1) 0.1770
(2) 0.0177
(3) 0.0344
(4) 1.7700​

Answer 1

Answer:

1.00 molal solution means 1 mole of solute in 1 kg (or 1000 g) of water.

Number of moles of solute =1

Number of moles of solvent =

18

1000

=55.55

Mole fraction of Solute =

1+55.55

1

=0.01768

Hence, the correct option is B

Explanation:

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