Question: Consider a voltaic cell was constructed with two Cu2+ - Cu electrodes. The two half-cell compartments have the following concentrations: [Cu2+]concentrated = 1.00 M [Cu2+]dilute
Consider a voltaic cell was constructed with two Cu2+ - Cu electrodes. The two half-cell compartments have the following concentrations: [Cu2+]concentrated = 1.00 M [Cu2+]dilute = 5.00 102 M Part A: Given that one half-reaction was for the concentrated half-cell and one was for the dilute half-cell, determine which reaction is the cathode and which is the anode as well as what happens to [Cu2+] in each reaction as the cell operates. Which electrode does this reaction occur? What happens to the concentration of Cu2+ as the cell operates? Question Blank 1 of 8 choose your answer... 2 e + Cu2+ (aq) Cu (s) Question Blank 2 of 8 choose your answer... Question Blank 3 of 8 choose your answer... Cu (s) Cu2+ (aq) + 2 e Question Blank 4 of 8 choose your answer... Part B: What is the concentration of Cu2+ in each half-cell? Balanced Redox Rxn: Cu (s) + Cu2+ (aq) Cu (s) + Cu2+ (aq) Which was the concentrated or dilute? [Cu2+] = Question Blank 5 of 8 choose your answer... [Cu2+] = Question Blank 6 of 8 choose your answer... Part C: Calculate the standard cell potential, Ecell, (in V) of the reaction at 298 K. Hint: The standard reduction potential, Ered, for a Cu2+ - Cu electrode is +0.34 V. Round your answer to TWO places past the decimal. If your answer is negative, include the sign. Ecell = Question Blank 7 of 8 type your answer... V
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