Question

Write the observations and balanced equation of the following reaction:

Excess ammonium hydroxide is added to a substance obtained by adding hydrochloric acid in silver nitrate solution.

Answer 1

1. In the reaction of Silver nitrate($\mathit{A}\mathit{g}\mathit{N}{\mathit{O}}_{\mathbf{3}}$) to Hydrochloric acid($\mathit{H}\mathit{C}\mathit{l}$), a white precipitate of Silver chloride($\mathit{A}\mathit{g}\mathit{C}\mathit{l}$) is obtained.
2. The precipitate of Silver chloride is readily soluble in Ammonium hydroxide($\mathit{N}{\mathit{H}}_{\mathbf{4}}\mathit{O}\mathit{H}$).
3. So a white precipitate is obtained and is readily soluble in water.
4. The equation for this reaction is,

$$\begin{gathered} \underset{Silvernitrate}{AgN{O}_3\left(s\right)}+\underset{Hydrochloricacid}{HCl\left(l\right)}\to \underset{Silverchloride}{AgCl\left(s\right)}+\underset{Nitricacid}{HN{O}_3\left(l\right)} \\ AgCl\left(s\right)+\underset{Ammoniumhydroxide}{2N{H}_{4}OH\left(aq\right)}\to \left[Ag{\left(N{H}_3\right)}_2\right]Cl(ppt.)+2H_{2}O\left(l\right) \end{gathered}$$