Thu July 28, 2011 By:

Is sodium bi carbonate an acidic salt or basic salt or neutral salt?how?

Expert Reply
Thu July 28, 2011
As a dry salt, sodium bicarbonate is neither basic nor neutral. Mixed with water, the sodium splits apart from the bicarbonate, and the bicarbonate acts as a weak base.
It's both - it's amphoteric. It can act as both a base and an acid.

"Aqueous solutions are mildly alkaline due to the formation of carbonic acid and hydroxide ion:
HCO3- + H2O ? H2CO3 + OH?Sodium bicarbonate reacts with acetic acid (found in vinegar) and presents a simple and showy demonstration of a chemical reaction. The products of the ensuing two-stage reaction are sodium acetate, water, and carbon dioxide:
NaHCO3 + CH3COOH ? CH3COONa + H2O + CO2(g)
Sodium bicarbonate reacts with bases such as sodium hydroxide to form carbonates:
NaHCO3 + NaOH ? Na2CO3 + H2O"
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