Question

What is the mole fraction of the solute in a 1.00 m aqueous solution?

• A. 1.770
• B. 0.0354
• C. 0.0177
• D. 0.177

Answer 1

The correct option is C

0.0177

1 molal aqueous solution means 1 mole of solute is present in 1000 g of water.
$\therefore x_{solute}=\frac{1}{1+\frac{1000}{18}}=\frac{1}{56.5}=0.0177$