Question

What will happen if a solution of sodium hydrochloric is heated ? Give the equation of the reaction involved?

Answer 1

On prolonged boiling of the solution, the bicarbonate will almost entirely get converted to the more stable carbonate with the liberation of carbon dioxide, just like it happens when the pure or dry salt is heated. Usually, solid sodium bicarbonate decomposes in correspondence to the above equation.

Answer 2

Sodium reacts with both the solute, HCl, and solvent, H2O.

2 Na(s) + 2 HCl (aq) → H2 (g) + 2 NaCl (aq)

along with:

2 Na (s) + 2 H2O → 2 NaOH + H2

Na(s) exposed to dry, gas phase HCl would follow only the first reaction.