A sample of propanoic acid ( , ) is titrated to its equivalence point with NaOH

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

Problem

50.0\,\text{mL}

sample of

0.0250\,\text{M}

propanoic acid (

\mathrm{C_3H_5O_2H}

K_a = 1.3\times10^{-5}

) is titrated to its equivalence point with

0.0500\,\text{M}

NaOH. Calculate the pH of the solution at the equivalence point. (Give the answer to two decimal places.)