Neco Model Questions Vol1 2019 Chemistry Question 25
Practice objective / multiple choice question 25 from the 2019 Neco Model Questions Vol1 Chemistry examination.
0.0500 mol of potassium permanganate (\(\mathrm{KMnO_4}\)) is added to 250 mL of an acidic solution containing ferrous ions (\(\mathrm{Fe^{2+}}\)). After the reaction, the excess permanganate is titrated with 0.1000 M sodium oxalate (\(\mathrm{Na_2C_2O_4}\)) according to \(\mathrm{2\,MnO_4^- + 5\,C_2O_4^{2-} + 16\,H^+ \rightarrow 2\,Mn^{2+} + 10\,CO_2 + 8\,H_2O}\). The titration required 12.5 mL of the oxalate solution. Determine the original concentration of \(\mathrm{Fe^{2+}}\) in the solution (mol L⁻¹).
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About This Question
This is Neco Model Questions Vol1 2019 Chemistry Question 25. It is one of the objective questions from the 2019 Neco Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
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