Chemistry - Chemical Equilibrium Question with Solution | TestHub

The number of moles of${\mathrm{NH}}_3,$that must be added to$2 \mathrm{L}$of$0.80{\mathrm{MAgNO}}_3$in order to reduce the concentration of${\mathrm{Ag}}^{+}$ions to$5.0\times {10}^{-8}\mathrm{M}\left({\mathrm{K}}_{\text{formation }}\right.$for$\left.{\left[\mathrm{Ag}{\left({\mathrm{NH}}_3\right)}_2\right]}^{+}=1.0\times {10}^8\right)$is __________. (Nearest integer)
[Assume no volume change on adding${\mathrm{NH}}_3$]