【Daily Question】Theoretical Foundation 2020.08.31
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Multiple-choice question: In a copper-zinc galvanic cell, if the c(H+) concentration at the copper electrode is increased from 1 mol L-1 to 2 mol L-1, then the electrode potential of the copper electrode ( ) A. increases; B. decreases; C. remains unchanged; D. cannot be determined. Answer: C Hint: An additional reward will be given to those who can explain the solution process; the answer can be seen in the response
Answer: C Explanation: The electrode reaction for the copper electrode is: Cu2+ + 2e- = Cu. Hydrogen ions do not participate in this reaction, so the electrode potential of the copper electrode is not affected by hydrogen ions.