25.0 mL of a 0.10 M solution of a weak monoprotic acid HA (with $K_a = 1.8\times10^{-5}$) is titrated with 0.10 M NaOH. Calculate the pH of the solution (a) at the half‑equivalence point and (b) at the equivalence point.

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Accepted Answer

4.74 (half‑equivalence); 8.72 (equivalence)

Neco Model Questions Vol1 2017 Chemistry Question 34

25.0 mL of a 0.10 M solution of a weak monoprotic acid HA (with \(K_a = 1.8\times10^{-5}\)) is titrated with 0.10 M NaOH. Calculate the pH of the solution (a) at the half‑equivalence point and (b) at the equivalence point.

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Neco Model Questions Vol1 2017 Chemistry Question 34

25.0 mL of a 0.10 M solution of a weak monoprotic acid HA (with \(K_a = 1.8\times10^{-5}\)) is titrated with 0.10 M NaOH. Calculate the pH of the solution (a) at the half‑equivalence point and (b) at the equivalence point.

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About This Question

Master the Exam!

25.0 mL of a 0.10 M solution of a weak monoprotic acid HA (with \(K_a = 1.8\times10^{-5}\)) is titrated with 0.10 M NaOH. Calculate the pH of the solution (a) at the half‑equivalence point and (b) at the equivalence point.