# The mole fraction of NaCl in a solution containing 1 mole of NaCl in 1000g of water is

$\begin{array}{1 1}(a)\;0.0177&(b)\;0.001\\(c)\;0.5&(d)\;0.244\end{array}$

Mole fraction =$\large\frac{1}{1+\Large\frac{1000}{18}}$
$\Rightarrow 0.0177$
Hence (a) is the correct option.
answered Jan 9, 2014