Question

Name the gas obtained by warming ammonium sulphate with sodium hydroxide solution.

Answer 1

• When we do a reaction of $\left({\mathrm{NH}}_4\right){\mathrm{SO}}_4$(ammonium sulphate) with $\mathrm{NaOH}$ (sodium hydroxide) solution, it gives sodium sulphate, water, and ammonia gas as a product.
• The reaction between ammonium sulphate and sodium hydroxide is represented as:-

$$\begin{gathered} {\left({\mathrm{NH}}_4\right)}_2{\mathrm{SO}}_4\left(\mathrm{s}\right)+2\mathrm{NaOH}\left(\mathrm{s}\right)\to {\mathrm{Na}}_2{\mathrm{SO}}_4\left(\mathrm{s}\right)+2{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right)+2{\mathrm{NH}}_3\left(\mathrm{g}\right) \\ (\mathrm{Ammonium}(\mathrm{Sodium}(\mathrm{Sodium}(\mathrm{Water})(\mathrm{Ammonia} \\ \mathrm{sulphate})\mathrm{hydroxide})\mathrm{sulphate})\mathrm{gas}) \end{gathered}$$

Thus, ammonia gas is obtained by warming ammonium sulphate with sodium hydroxide solution.