show-the-stepwise-dissociation-of-a-diprotic-acid-h2co3-and-the-corresponding-eq

Question

Show the stepwise dissociation of a diprotic acid, $$H_{2}CO$$_{3}, and the corresponding equilibrium equations.

Accepted Answer

$$H_{2}CO$$_{3} (aq) + $$H_{2}O (l$$) ⇌ $$H_{3}O$$^{+}$$ (aq) + HCO_{3}^{−} (aq); K_{a1} = ( [H$$_{3}$$O^{+}$$] [HCO_{3}^{−}] ) / [$$H_{2}CO$$_{3}]  HCO_{3}^{−} (aq) + $$H_{2}O (l$$) ⇌ $$H_{3}O$$^{+}$$ (aq) + CO_{3}^{2−} (aq); K_{a2}  = ( [H$$_{3}$$O^{+}$$] [CO_{3}^{2−}] ) / [$$HCO^{3−}$$]

Answer

$$H_{2}CO$$_{3} (aq) + $$H_{2}O (l$$) ⇌ $$H_{3}O$$^{+}$$ (aq) + HCO_{3}^{−} (aq); K_{a1} = ( [H$$_{3}$$O^{+}$$] [HCO_{3}^{−}] ) / ( [$$H_{2}CO$$_{3}] [$$H_{2}O$$] )  HCO_{3}^{−} (aq) + $$H_{2}O (l$$) ⇌ $$H_{3}O$$^{+}$$ (aq) + CO_{3}^{2−} (aq); K_{a2}  = ( [H$$_{3}$$O^{+}$$] [CO_{3}^{2−}] ) / ( [$$HCO^{3−}$$] [$$H_{2}O$$] )

Answer

$$H_{2}CO$$_{3} (aq) + $$H_{2}O (l$$) ⇌ $$H_{3}O$$^{+}$$ (aq) + HCO_{3}^{−} (aq); K_{a1} = [H$$_{2}$$CO_{3}] / ( [H$$_{3}$$O^{+}$$] [HCO_{3}^{−}] ) HCO_{3}^{−} (aq) + $$H_{2}O (l$$) ⇌ $$H_{3}O$$^{+}$$ (aq) + CO_{3}^{2−} (aq); K_{a2}  = [$$HCO^{3−}$$] / ( [H$$_{3}$$O^{+}$$] [CO_{3}^{2−}] )

Answer

$$H_{2}CO$$_{3} (aq) + $$H_{2}O (l$$) ⇌ $$H_{3}O$$^{+}$$ (aq) + HCO_{3}^{−} (aq); K_{a1} = ( [H$$_{2}$$CO_{3}] [H$$_{2}$$O] ) / ( [H$$_{3}$$O^{+}$$] [HCO_{3}^{−}] ) HCO_{3}^{−} (aq) + $$H_{2}O (l$$) ⇌ $$H_{3}O$$^{+}$$ (aq) + CO_{3}^{2−} (aq); K_{a2}  = ( [$$HCO^{3−}$$] [H$$_{2}$$O] ) / ( [H$$_{3}$$O^{+}$$] [CO_{3}^{2−}] )

Show the stepwise dissociation of a diprotic acid, H2CO3, and the corresponding equilibrium equations.

Show the stepwise dissociation of a diprotic acid, H₂CO₃, and the corresponding equilibrium equations.