JAMB Biology 2015 Objective — Question 49
Question 49 of 50 from the Joint Admissions and Matriculation Board (JAMB) Biology 2015 Objective paper, with the correct answer and a full explanation.
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Calculate the mass of magnesium that would be deposited by 8 faradays of electricity. [Mg=24]
- A. 96gCorrect
- B. 48g
- C. 72g
- D. 120g
Explanation
Mg²⁺ + 2e⁻ → Mg, so 2F deposits 1 mole of Mg (24g). 8F will deposit 4 moles = 96g.
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