Neco 2023 Chemistry Question 12

Practice objective / multiple choice question 12 from the 2023 Neco Chemistry examination.

Neco 2023 Chemistry Objective / Multiple Choice Medium Difficulty

Question 12 NECO • 2023 • CHEMISTRY • objective

A galvanic cell is constructed as \(\text{Zn(s)}\,|\,\text{Zn}^{2+}(0.010\ \text{M})\,||\,\text{Cu}^{2+}(\text{unknown})\,|\,\text{Cu(s)}\). The measured emf at 25 °C is \(1.05\ \text{V}.\) Given \(E^{\circ}(\text{Cu}^{2+}/\text{Cu}) = +0.34\ \text{V}\) and \(E^{\circ}(\text{Zn}^{2+}/\text{Zn}) = -0.76\ \text{V},\) determine the concentration of \(\text{Cu}^{2+}\) in the cell.

A. 5.0×10⁻⁴ M

B. 1.0×10⁻⁴ M

C. 2.0×10⁻³ M

Correct Answer D. 2.0×10⁻⁴ M

Correct Answer

Correct Option:

2.0×10⁻⁴ M

This is Neco 2023 Chemistry Question 12. It is one of the objective questions from the 2023 Neco Chemistry examination.

Difficulty level: Medium .

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