(a) Explain the term electrodes in electric cells. b) An electric current passing through an...
PHYSICS
WAEC 2012
(a) Explain the term electrodes in electric cells.
b) An electric current passing through an electrolyte for 2 minutes deposited 200 g of a substance. If the electrochemical equivalent of the substance is 8.33 x 10\(^{-4}\)g C\(^{-1}\), calculate the current passed.
Explanation
(a) An electrode is a conductor through which electrons flow into and out of the electric cell.
(b) I = \(\frac{M}{zt} = \frac{200}{8.33 \times 10^{-4} \times 60 \times 2}\)
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