Question

Explain with the help of the equations, how the following salts can be prepared in the laboratory:

(c) Sodium sulphate

Answer 1

Reaction Summary

• By neutralization reaction, sodium sulphate$\left({\mathrm{Na}}_2{\mathrm{SO}}_4\right)$ can be prepared.
• It can be prepared by using appropriate dilute acid, like sulphuric acid$\left({\mathrm{H}}_2{\mathrm{SO}}_4(\mathrm{dil}.)\right)$ which reacts with caustic soda solution$\left(\mathrm{NaOH}\right)$.

Balanced Reaction

• The chemical equation is as follows:

$2\mathrm{NaOH}\left(\mathrm{aq}\right)+{\mathrm{H}}_2{\mathrm{SO}}_4(\mathrm{dil}.)\to {\mathrm{Na}}_2{\mathrm{SO}}_4\left(\mathrm{aq}\right)+2{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right)$