Question

240(a). What happens when an aqueous solution of sodium hydrogen carbonate is heated?

Answer 1

• Sodium hydrogen carbonate is commonly known as bicarbonate of soda or baking soda.
• The chemical formula of Sodium hydrogen carbonate is ${\mathrm{NaHCO}}_3$
• When a solution of Sodium hydrogen carbonate is heated, it gets decomposed into simpler chemical compounds like Sodium carbonate, water, and Carbon dioxide.
• The chemical equation for the reaction is as follows:

$\underset{\mathrm{Sodium}\mathrm{Hydrogen}\mathrm{Carbonate}}{{\mathrm{NaHCO}}_3\left(\mathrm{aq}\right)}\to \underset{\mathrm{Sodium}\mathrm{Carbonate}}{{\mathrm{Na}}_2{\mathrm{CO}}_3\left(\mathrm{aq}\right)}+\underset{\mathrm{Carbon}\mathrm{dioxide}}{{\mathrm{CO}}_2\left(\mathrm{g}\right)}+\underset{\mathrm{Water}}{{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right)}$