For the voltaic cell based on this reaction: 2Ag+(aq) + Cu → Cu2+(aq) + 2Ag the concentrations of th — Electrochemistry Chemistry Question
Question
For the voltaic cell based on this reaction: 2Ag+(aq) + Cu → Cu2+(aq) + 2Ag
the concentrations of the aqueous ions and sizes of the electrodes can be changed independently. Which statement is correct?
A.
Increasing the [Cu2+] two-fold has the same effect on the cell voltage as increasing the [Ag+] four-fold.
B.
Decreasing the [Cu2+] ten-fold has the same effect on the cell voltage as decreasing the [Ag+] by the same ratio.
C.✓ Correct
Decreasing the [Cu2+] ten-fold has less effect on the cell voltage than decreasing the [Ag+] by the same amount.
D.
Doubling the sizes of the cathode has exactly the same effect on the cell voltage as decreasing the [Cu2+] by a factor of two.
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