The bicarbonate ion, HCO₃^-, is amphoteric. What are the conjugate acid and conjugate base, in that order, of HCO₃^-? A)CO₃^2-, HCO₃^- B)HCO₃^-,CO₃^2- C)CO₃^2-, H₂CO₃ D)H₂CO₃, CO₃^2- E)H₃O⁺, CO₃^2-

Question

Quizplus · Accepted Answer

The conjugate base of HCO₃^- is formed by removing a proton (H+) from the molecule. This results in the formation of the CO₃^2- ion. The conjugate acid of HCO₃^- is formed by adding a proton (H+) to the molecule. This results in the formation of the H₂CO₃ ion. Therefore, the correct answer is D because it includes the conjugate base (CO₃^2-) and the conjugate acid (H₂CO₃) in the correct order.

The Bicarbonate Ion, HCO3-, Is Amphoteric

The Bicarbonate Ion, HCO₃^-, Is Amphoteric