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7.39     The species: H_{2}O, HCO^{3-}, HSO_{4}^{-} and NH_{3} can act both as Brönsted acids and bases. For each case give the corresponding conjugate acid and base.

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When acid or base accept or lose a proton, they form conjugate acid or base of that corresponding species.

Lists of the conjugate acid and conjugate base of the given species-

Species Conjugate acid Conjugate base
H_2O H_3O^+ OH^-
HCO_{3}^- H_2CO_{3} CO_{3}^{2-}
HSO_{4}^- H_2SO_{4} SO_{4}^{2-}
NH_3 NH_4^+



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