H₂CO₃ is a dioprotic acid. It has two hydrogen ions that may be dissociated. Write an equation to show the dissociation of each proton

Question

Write reactions that show HCO₃⁻ reacting with water and:

HCO₃⁻ acts as an acid:

HCO₃⁻ acts as a base

Answer 1

H₂CO₃ <==> H⁺ + HCO₃^- <==> H⁺ + CO₃^2-

HCO₃^- acting as an acid: HCO₃^- + H₂O ==> H₃O⁺ + CO₂^2-

HCO₃^- acting as a base: HCO₃^- + H₂O ==> H₂CO₃ + OH^-