Neco 2019 Chemistry Question 35
Practice objective / multiple choice question 35 from the 2019 Neco Chemistry examination.
A mixture contains 0.0300 mol of \( \mathrm{Fe^{2+}} \) and 0.0100 mol of \( \mathrm{Cr^{2+}} \) in acidic solution. Exactly 20.0 mL of a potassium permanganate solution of unknown concentration is added, and the mixture is allowed to react to completion. The remaining solution is then titrated with 0.0500 M \( \mathrm{Fe^{2+}} \) solution, requiring 20.0 mL to reach the endpoint. Determine the molarity of the original \( \mathrm{KMnO_4} \) solution.
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About This Question
This is Neco 2019 Chemistry Question 35. It is one of the objective questions from the 2019 Neco Chemistry examination.
Difficulty level: Medium .
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