Which Acid Has the Strongest Conjugate Base

question 99

Multiple Choice

Which acid has the strongest conjugate base?

• A)Hydrogen sulfate ion HSO₄^- (K_a = 1.2 × 10^-2)
• B)Hydrocyanic acid HCN (K_a = 4.9 × 10^-10)
• C)Hydrofluoric acid HF (K_a = 7.2 × 10^-4)
• D)Ammonium ion NH₄⁺ (K_a = 5.6 × 10^-10)

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