Question

Write the chemical formula of (i) soda ash, and (ii) sodium carbonate decahydrate.

Answer 1

(i) The chemical formula of soda ash is ${\mathrm{Na}}_2{\mathrm{CO}}_3$. Its chemical name is sodium carbonate.
(ii) The chemical formula of sodium carbonate decahydrate is ${\mathrm{Na}}_2{\mathrm{CO}}_3$.${\mathrm{H}}_2\mathrm{O}$. Its common name is washing soda.