CH₃COOH(aq) + H₂O(1) =H₃O+ (aq) + CH₃COO-(aq)
CH₃COO (aq) + H₂O(l) 3 CH₃COOH(aq) + OH (aq)
2 H₂O(1) H₃O+(aq) + OH(aq)
A buffer solution is made up of acetic acid (CH₃COOH) and sodium acetate (NaCH₃COO). The major equilibria in the buffer system are represented above. Which of the following equilibria could be used to support the claim that the addition of a small amount of NaOH to the buffer will result in only a very small change in pH?
A. CH₃COOH(aq) + CH₃COO⁻(aq) = CH₃COO⁻ (aq) + CH₃COOH(aq)
B. CH₃COOH(aq) + OH(aq) 3 CH₃COO⁻ (aq) + H₂O(1)
С. H₃O⁺ (aq) + OH(aq) 2H₂O(1)
D. CH₃COOH(aq) + H₂0(1) =H₃O⁺ (aq) + CH₃COO⁻ (aq)
