Which of the following bases has the strongest conjugate acid? A) CH₃COO⁻ B) C₆H₅O⁻ C) HSO₄⁻ D) H₂PO₄⁻

Question

Quizplus · Accepted Answer

For a base and its conjugate acid, the stronger the base, the weaker the conjugate acid. Since hydrogen sulfide (HS-) is a stronger acid than hydroxide (OH-), the conjugate acid of HS- (which is H2S) will be a stronger acid than the conjugate acid of OH- (which is H2O). Therefore, option C, which has the base HS-, will have the strongest conjugate acid.

Which of the Following Bases Has the Strongest Conjugate Acid