SAT Chemistry

Category - Multiple Choice

CH3COOH + H2O --> CH3COO- + H3O+

Which of the following descriptions best characterizes CH3COO- in the reaction above?
  1. Cation
  2. Conjugate acid
  3. Conjugate base
  4. Indicator
  5. Neutral species
Explanation
Answer: Conjugate base

In the reaction above, CH3COOH acts as a weak acid. Therefore, CH3COO- is best characterized as a conjugate base.
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