Two different buffer systems are adjusted to pH 6.35

CHEMISTRY · Subjective · A Level · Chemistry · Acids and bases · Acids and bases

Problem

Two different buffer systems are adjusted to pH 6.35. Buffer C is based on H₂CO₃/HCO₃⁻ (pKaK_a = 6.35), while Buffer D is based on CH₃COOH/CH₃COO⁻ (pKaK_a = 4.75). Which buffer will better resist a pH change upon addition of a small amount of strong base, and why?

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