If the molarity of $N{H}_3$ in water solution is $5$ mole$/$liter$,$ and the density of solution is $1\mathrm{.}01\frac{g}{m}l$ find the molality.

Molar mass of $N{H}_3=17\frac{g}{m}$ole

$4\mathrm{.}3m$

$6\mathrm{.}4m$

$7\mathrm{.}1m$

$5\mathrm{.}4m$