Waec Model Questions Vol1 2020 Chemistry Question 26

Practice objective / multiple choice question 26 from the 2020 Waec Model Questions Vol1 Chemistry examination.

Waec Model Questions Vol1 2020 Chemistry Objective / Multiple Choice Medium Difficulty

Question 26 WAEC_MODEL_QUESTIONS_VOL1 • 2020 • CHEMISTRY • objective

Calculate the electromotive force (EMF) at 25 °C for the galvanic cell: Zn(s) | Zn2+ (0.010 M) || Cu2+ (0.001 M) | Cu(s). Standard reduction potentials are E°(Cu2+/Cu)=+0.337 V and E°(Zn2+/Zn)=‑0.763 V. Use the Nernst equation and give your answer to two decimal places in volts.

Answer Options

A. 0.85 V

Correct Answer B. 1.07 V

C. 1.23 V

D. 0.93 V

Correct Answer

Correct Option:

1.07 V

About This Question

This is Waec Model Questions Vol1 2020 Chemistry Question 26. It is one of the objective questions from the 2020 Waec Model Questions Vol1 Chemistry examination.

Difficulty level: Medium .

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Waec Model Questions Vol1 2020 Chemistry Question 26

Calculate the electromotive force (EMF) at 25 °C for the galvanic cell: Zn(s) | Zn2+ (0.010 M) || Cu2+ (0.001 M) | Cu(s). Standard reduction potentials are E°(Cu2+/Cu)=+0.337 V and E°(Zn2+/Zn)=‑0.763 V. Use the Nernst equation and give your answer to two decimal places in volts.

Answer Options

About This Question

Master the Exam!

Calculate the electromotive force (EMF) at 25 °C for the galvanic cell: Zn(s) | Zn2+ (0.010 M) || Cu2+ (0.001 M) | Cu(s). Standard reduction potentials are E°(Cu2+/Cu)=+0.337 V and E°(Zn2+/Zn)=‑0.763 V. Use the Nernst equation and give your answer to two decimal places in volts.