Question

Is${\mathrm{Na}}_2{\mathrm{CO}}_3$ an acid or base?

Answer 1

${\mathrm{NaHCO}}_3$ is a combination of a mild acid salt (${\mathrm{H}}_2{\mathrm{CO}}_3$) and a solid base ($\mathrm{NaOH}$).

1. Since carbonic acid is such a weak acid, it remains undissociated.
2. With the addition of ${\mathrm{OH}}^{-}$ ions formed by hydrolysis, the solution becomes alkaline.
3. Sodium carbonate is a chemical compound with molecular formula ${\mathrm{Na}}_2{\mathrm{CO}}_3$, It is commonly known as washing soda and is used in cleaning products, food additives, glass processing, and other applications.

Hence,${\mathrm{Na}}_2{\mathrm{CO}}_3$ is not an acid, it is a base (basic salt).