Chemistry - Mole Concept Question with Solution | TestHub

Chemical formula of ammonium nitrate is $\begin{array}{ll}& {\mathrm{NH}}_4{\mathrm{NO}}_3.\\ & 1\mathrm{mol}{\mathrm{NH}}_4{\mathrm{NO}}_3\equiv 2\mathrm{mol}\mathrm{N}\text{-atoms }\\ \therefore & 80\mathrm{g}{\mathrm{NH}}_4{\mathrm{NO}}_3^{-}=2\mathrm{mol}\mathrm{N}\text{-atoms }\\ \therefore & 8\mathrm{g}{\mathrm{NH}}_4{\mathrm{NO}}_3=0.2\mathrm{mol}\mathrm{N}\text{-atoms }\end{array}$