3. A solution is 0.200 M in Co²+ and 0.0650 M in Cd²+. Calculate (a) the Co²+ concentration in the solution as the first cadmium starts to deposit. (b) the cathode potential needed to lower the Co²+ concentration to 1.00×10¯6 M?

Chemistry: The Molecular Science
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Chapter17: Electrochemistry And Its Applications
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3. A solution is 0.200 M in Co²+ and 0.0650 M in Cd²+. Calculate
(a) the Co²+ concentration in the solution as the first cadmium starts to deposit.
(b) the cathode potential needed to lower the Co²+ concentration to 1.00×10-6 M?
Transcribed Image Text:3. A solution is 0.200 M in Co²+ and 0.0650 M in Cd²+. Calculate (a) the Co²+ concentration in the solution as the first cadmium starts to deposit. (b) the cathode potential needed to lower the Co²+ concentration to 1.00×10-6 M?
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