Neco 2020 Chemistry Question 40

Practice objective / multiple choice question 40 from the 2020 Neco Chemistry examination.

Neco 2020 Chemistry Objective / Multiple Choice Medium Difficulty
Question 40 NECO • 2020 • CHEMISTRY • objective

A galvanic cell is constructed with the half‑cells \(\mathrm{Zn^{2+}(aq)\,|\,Zn(s)}\) and \(\mathrm{Cu^{2+}(aq)\,|\,Cu(s)}\). Standard reduction potentials are \(E^{\circ}_{\mathrm{Zn^{2+}/Zn}} = -0.76\ \text{V}\) and \(E^{\circ}_{\mathrm{Cu^{2+}/Cu}} = +0.34\ \text{V}\). At 298 K the ion concentrations are \([\mathrm{Zn^{2+}}]=0.010\ \text{M}\) and \([\mathrm{Cu^{2+}}]=0.50\ \text{M}\). Calculate the cell potential \(E_{\text{cell}}\). Give your answer to two decimal places.

Answer Options

Correct Answer A. 1.15
B. 1.02
C. 1.30
D. 0.58
Correct Answer
A
Correct Option:
1.15

About This Question

This is Neco 2020 Chemistry Question 40. It is one of the objective questions from the 2020 Neco Chemistry examination.

Difficulty level: Medium .

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