Igcse Model Questions Vol1 2024 Chemistry Question 17
Practice objective / multiple choice question 17 from the 2024 Igcse Model Questions Vol1 Chemistry examination.
A galvanic cell consists of a zinc electrode in 1.0 M ZnSO₄ and a copper electrode in 0.10 M CuSO₄. Standard reduction potentials are \(E^{\circ}_{\text{Zn}^{2+}/\text{Zn}} = -0.76\) V and \(E^{\circ}_{\text{Cu}^{2+}/\text{Cu}} = +0.34\) V.\n(a) Calculate the cell EMF at 25 °C using the Nernst equation (assume \(n = 2\)).\n(b) If a current of 0.50 A is passed for 2.00 h and the current efficiency for copper deposition is 85 %, what mass of copper is actually deposited on the copper electrode? (Molar mass Cu = 63.55 g mol(^{-1})).
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This is Igcse Model Questions Vol1 2024 Chemistry Question 17. It is one of the objective questions from the 2024 Igcse Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
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