PhysicsConduction of electricity through liquids and gasesJAMB
A current of 2 A flows for 30 minutes through a copper sulphate solution. Find the mass of copper deposited. (Electrochemical equivalent of copper = 3.3 × 10⁻⁷ kg/C)
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Answer: B. 1.19 × 10⁻³ kg
Q = 2 × 1800 = 3600 C; m = zQ = 3.3 × 10⁻⁷ × 3600 ≈ 1.19 × 10⁻³ kg.
An AdmitMe practice question, written for the JAMB syllabus. Not an official past question.