Waec Model Questions Vol1 2017 Chemistry Question 24

Practice objective / multiple choice question 24 from the 2017 Waec Model Questions Vol1 Chemistry examination.

Waec Model Questions Vol1 2017 Chemistry Objective / Multiple Choice Medium Difficulty
Question 24 WAEC_MODEL_QUESTIONS_VOL1 • 2017 • CHEMISTRY • objective

In an electrolytic copper‑plating operation a constant current of 2.5 A is passed for 3.0 h. The current efficiency for copper deposition is 85 %. Calculate the mass of copper deposited on the cathode. (M_{Cu}=63.55 g mol⁻¹, F=96 485 C mol⁻¹)

Answer Options

A. 5.4 g
B. 8.9 g
Correct Answer C. 7.6 g
D. 6.2 g
Correct Answer
C
Correct Option:
7.6 g

About This Question

This is Waec Model Questions Vol1 2017 Chemistry Question 24. It is a objective / multiple choice question from the 2017 Waec Model Questions Vol1 Chemistry examination.

Difficulty level: Medium .

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