Neco 2021 Chemistry Question 40

Practice objective / multiple choice question 40 from the 2021 Neco Chemistry examination.

Neco 2021 Chemistry Objective / Multiple Choice Medium Difficulty
Question 40 NECO • 2021 • CHEMISTRY • objective

Consider the galvanic cell \(Zn(s) \mid Zn^{2+} (0.010 \ \text{M}) \;||\; Cu^{2+} (0.10 \ \text{M}) \mid Cu(s)\) with standard reduction potentials \(E^{\circ}(Zn^{2+}/Zn) = -0.76 \ \text{V}\) and \(E^{\circ}(Cu^{2+}/Cu) = +0.34 \ \text{V}\). (a) Calculate the cell potential at 25°C using the Nernst equation. (b) Using the standard cell potential, determine the equilibrium constant K for the overall reaction.

Answer Options

A. E = 0.58 V; K \approx 3.2\times10^{12}
Correct Answer B. E = 1.13 V; K \approx 2.5\times10^{37}
C. E = 1.10 V; K \approx 1.0\times10^{35}
D. E = 1.20 V; K \approx 5.0\times10^{38}
Correct Answer
B
Correct Option:
E = 1.13 V; K \approx 2.5\times10^{37}

About This Question

This is Neco 2021 Chemistry Question 40. It is one of the objective questions from the 2021 Neco Chemistry examination.

Difficulty level: Medium .

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