Gce Model Questions Vol1 2024 Chemistry Question 23
Practice objective / multiple choice question 23 from the 2024 Gce Model Questions Vol1 Chemistry examination.
A galvanic cell is constructed with a zinc electrode immersed in a \(\mathrm{Zn^{2+}}\) solution of concentration \(0.010\;\text{M}\) and a copper electrode immersed in a \(\mathrm{Cu^{2+}}\) solution of unknown concentration. At \(298\;\text{K}\) the cell emf is measured as \(1.05\;\text{V}\). (Standard potentials: \(E^\circ_{\mathrm{Zn^{2+}/Zn}} = -0.76\;\text{V}\), \(E^\circ_{\mathrm{Cu^{2+}/Cu}} = +0.34\;\text{V}\).)\n\n(a) Calculate the concentration of \(\mathrm{Cu^{2+}}\) in the copper half‑cell.\n\n(b) If a charge of \(0.500\;\text{C}\) passes through the cell, determine the mass of zinc that is deposited on the zinc electrode (to three significant figures).
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This is Gce Model Questions Vol1 2024 Chemistry Question 23. It is one of the objective questions from the 2024 Gce Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
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