Waec Model Questions Vol1 2025 Chemistry Question 39

Practice objective / multiple choice question 39 from the 2025 Waec Model Questions Vol1 Chemistry examination.

Waec Model Questions Vol1 2025 Chemistry Objective / Multiple Choice Medium Difficulty
Question 39 WAEC_MODEL_QUESTIONS_VOL1 • 2025 • CHEMISTRY • objective

Consider a galvanic cell: Zn|Zn²⁺ (unknown concentration) || Cu²⁺ (0.010 M) |Cu at 25 °C. The standard electrode potentials are E°(Zn²⁺/Zn)=‑0.76 V and E°(Cu²⁺/Cu)=+0.34 V. The measured cell emf is 1.05 V. Determine the concentration of Zn²⁺ in the left half‑cell.

Answer Options

A. 1.2 M
B. 0.094 M
Correct Answer C. 0.49 M
D. 0.025 M
Correct Answer
C
Correct Option:
0.49 M

About This Question

This is Waec Model Questions Vol1 2025 Chemistry Question 39. It is one of the objective questions from the 2025 Waec Model Questions Vol1 Chemistry examination.

Difficulty level: Medium .

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