Waec Model Questions Vol1 2018 Chemistry Question 7
Practice objective / multiple choice question 7 from the 2018 Waec Model Questions Vol1 Chemistry examination.
In acidic solution the following half‑reactions are given: MnO₄⁻ + 8 H⁺ + 5 e⁻ → Mn²⁺ + 4 H₂O E° = +1.51 V; Fe³⁺ + e⁻ → Fe²⁺ E° = +0.77 V. (a) Write the balanced overall redox equation for the reaction between potassium permanganate and ferrous ion. (b) Calculate the equilibrium constant K for this reaction at 25 °C. Express K in scientific notation with two significant figures.
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About This Question
This is Waec Model Questions Vol1 2018 Chemistry Question 7. It is one of the objective questions from the 2018 Waec Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
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