Question

Name the gas released when sodium carbonate is added to a solution of Sulphur dioxide$\left({\mathrm{SO}}_2\right)$.

Answer 1

• Carbon dioxide $\left({\mathrm{CO}}_2\right)$ is released when sodium carbonate $\left({\mathrm{Na}}_2{\mathrm{CO}}_3\right)$ is added to the solution of sulphur dioxide $\left({\mathrm{SO}}_2\right)$.

The chemical equation involved in this reaction can be written as:
${\mathrm{Na}}_2{\mathrm{CO}}_3\left(\mathrm{s}\right)+2{\mathrm{SO}}_2\left(\mathrm{g}\right)+{\mathrm{H}}_2\mathrm{O}\left(\mathrm{aq}\right)\to 2{\mathrm{NaHSO}}_3\left(\mathrm{s}\right)+{\mathrm{CO}}_2\left(\mathrm{g}\right)$