In an ethanoic acid / sodium ethanoate buffer, how is a small amount of added H⁺ removed?

1. A Option A: It is removed by water molecules forming OH⁻
2. B Option B: It combines with CH₃COO⁻ ions to form undissociated CH₃COOH
3. C Option C: It combines with Na⁺ ions to form NaH
4. D Option D: It reacts with CH₃COOH to form CH₃COOH₂⁺

Answer checked 11 October 2026 · How we write and check questions