Gce Model Questions Vol1 2018 Chemistry Question 7
Practice objective / multiple choice question 7 from the 2018 Gce Model Questions Vol1 Chemistry examination.
A galvanic cell is constructed with a copper electrode immersed in a \(0.010\) M \(\ce{Cu^{2+}}\) solution and an iron electrode immersed in a solution that contains \(0.10\) M \(\ce{Fe^{2+}}\) and an unknown concentration \(x\) of \(\ce{Fe^{3+}}\). The standard reduction potentials are \(E^{\circ}_{\ce{Cu^{2+}/Cu}} = +0.34\) V and \(E^{\circ}_{\ce{Fe^{3+}/Fe^{2+}}} = +0.77\) V. The measured cell emf at 25 °C is \(0.42\) V. Determine the concentration \(x\) of \(\ce{Fe^{3+}}\) in the solution.
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About This Question
This is Gce Model Questions Vol1 2018 Chemistry Question 7. It is one of the objective questions from the 2018 Gce Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
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