Gce Model Questions Vol1 2019 Chemistry Question 17
Practice objective / multiple choice question 17 from the 2019 Gce Model Questions Vol1 Chemistry examination.
A 0.250‑L sample of a diprotic acid \(\mathrm{H_2A}\) contains 0.025 mol of the acid. The first and second dissociation constants are \(K_{a1}=1.0\times10^{-3}\) and \(K_{a2}=1.0\times10^{-8}\) respectively. The solution is titrated with 0.10 M \(\mathrm{NaOH}\). (a) What volume of \(\mathrm{NaOH}\) is required to reach the first equivalence point? (b) Calculate the pH of the solution at that point.
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About This Question
This is Gce Model Questions Vol1 2019 Chemistry Question 17. It is one of the objective questions from the 2019 Gce Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
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