Question

What is the nature of NaHCO3 salt?​

Answer 1

Answer:

→ NaHCO3 is a salt of a weak acid, H2CO3, and a strong base, NaOH.

→ Since carbonic acid is a weak acid, it remains undissociated. Hence, the solution becomes basic due to the presence of additional OH- ions produced by hydrolysis.

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Answer 2

Explanation:

It’s amphoteric - it reacts with both acids & alkalis, so it can be considered to be a base. Acid reactions can be quite violent, releasing CO2 gas and is often used in chemical labs to neutralise acid spills or excess acid production (also used as an indigestion remedy, neutralising the HCl in stomach acid to produce salt, water and carbon dioxide). Another use is as a pH regulator in ponds, to raise the pH level if the acidity level is too high.

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