What is the conjugate acid of $H C O_{3}^{-}$ $HCO_3^-$ ?

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Answer 1 · 2015-02-17T11:13:36

A conjugate acid is a substance that is formed when a base receives a proton, or $H^{+}$ $H^(+)$ .

So, in order to determine the conjugate acid for a given base, all you have to know is that

$base + H^{+} \to conjugate acid of that base$ $"base" + H^(+) -> "conjugate acid of that base"$

In your case, the base is hydrogen carbonate, or $H C O_{3}^{-}$ $HCO_3^(-)$ . If you write the equation you'll get

$H C O_{3}^{-} + H^{+} \to H_{2} C O_{3}$ $HCO_3^(-) + H^(+) -> H_2CO_3$

Carbonic acid, or $H_{2} C O_{3}$ $H_2CO_3$ , will be the conjugate acid of hydrogen carbonate.

What is the conjugate acid of HCO−3HCO_3^-?