MDCAT Chemistry MCQ #499

A solution of 0.5 M benzaldehyde is treated with 0.5 M sodium hydroxide. If the equilibrium constant for the reaction is 1.2, what is the concentration of the benzoate ion at equilibrium?

MDCAT Chemistry MCQ #499

  1. Question 1

    Q1. A solution of 0.5 M benzaldehyde is treated with 0.5 M sodium hydroxide. If the equilibrium constant for the reaction is 1.2, what is the concentration of the benzoate ion at equilibrium?

    • A) 0.3 M
    • B) 0.4 M
    • C) 0.5 M
    • D) 0.6 M

    Answer: 0.4 M

    Explanation: Equilibrium constant expression gives the ratio of product to reactant concentrations.