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Bicarbonate is a polyatomic ion comprised of one hydrogen, one carbon, and also three oxygen v one an unfavorable formal charge having a chemistry formula HCO3–. It is additionally known as hydrogen carbonate. That is greatly used in pH buffering systems. They are mainly soluble in water at conventional temperature and pressure.

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Bicarbonate is created when one proton is removed from carbonic acid.

In this article, we will discuss Is Hydrogen carbonate(HCO3–) an mountain or base? the conjugate acid and also conjugate base, etc.


So, Is HCO3– an acid or base? Bicarbonate(HCO3–) is amphoteric in nature method it have the right to act as an acid and also base, depending upon what that is reacting with. It is one of the main components used in a pH buffering system due to its amphoteric nature.

Let’s talk about in much more detail how deserve to HCO3– have the right to act as an acid as well as a base?

Name of MoleculeBicarbonate
Chemical formulaHCO3–
Molar mass61.0168 g mol−1
NatureAmphoteric
Conjugate acidH2CO3
Conjugate baseCO32-
Acidity(pKa)10.3
Basicity(pKb)7.7