Question

Carbon dioxide dissolve in water to form a weak acid called_________________.

Answer 1

Carbonic acid: Carbonic acid is a carbon-containing compound that has the chemical formula ${\mathrm{H}}_2{\mathrm{CO}}_3$.

• When carbon dioxide dissolves in water only some molecules of it will react with $\mathrm{Water}$. Most of it gets dissolved.
• It reacts with $\mathrm{Water}\left({\mathrm{H}}_2\mathrm{O}\right)$ and forms $\mathrm{Carbonic}\mathrm{acid}\left({\mathrm{H}}_2{\mathrm{CO}}_3\right)$.
• It is a weak dibasic acid which means it has partly dissolved into water.
• $\underset{\mathrm{Carbon}\mathrm{dioxide}}{{\mathrm{CO}}_2}+\underset{\mathrm{Water}}{{\mathrm{H}}_2\mathrm{O}}\to \underset{\mathrm{Carbonic}\mathrm{acid}}{{\mathrm{H}}_2{\mathrm{CO}}_3}$

Thus, Carbon dioxide dissolve in water to form a weak acid called carbonic acid .