Question

What is the mole fraction of the solute in a $2.00m$ aqueous solution?

• A. $3.47$
• B. $0.069$
• C. $0.0347$
• D. $0.347$

Answer 1

Answer: (C)

$2$ molal aqueous solution means $2$ mole of solute is present in $1000g$ of water.
$\therefore x_{\text{solute}}=\frac{2}{2+\frac{1000}{18}}$
$=\frac{2}{57.5}=0.0347$