Neco Model Questions Vol1 2018 Chemistry Question 27
Practice objective / multiple choice question 27 from the 2018 Neco Model Questions Vol1 Chemistry examination.
In an acidic solution, \(0.250\ \text{mol}\) of potassium permanganate \(\mathrm{KMnO_4}\) is used to oxidize an unknown amount of ferrous ions \(\mathrm{Fe^{2+}}\) to ferric ions \(\mathrm{Fe^{3+}}\). After the reaction, the excess \(\mathrm{Fe^{2+}}\) is titrated with \(0.100\ \text{M}\) cerium(IV) sulfate solution, requiring \(12.5\ \text{mL}\) to reach the endpoint. Calculate the original mass of ferrous ions (as iron) present before the reaction with \(\mathrm{KMnO_4}\).
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About This Question
This is Neco Model Questions Vol1 2018 Chemistry Question 27. It is one of the objective questions from the 2018 Neco Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
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