Determine the equilibrium concentrations of ,

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

Problem

Determine the equilibrium concentrations of

\mathrm{C_6H_5COOH}

\mathrm{C_6H_5COO^-}

, and

\mathrm{H_3O^+}

in a 0.020 M solution of benzoic acid at 25 °C. The

pK_a

of benzoic acid is 4.20.