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Please help me choosing the correct answer for these questions! If a voltaic cel

ID: 1055270 • Letter: P

Question

Please help me choosing the correct answer for these questions!

If a voltaic cell is constructed consisting of a Cu/Cu^2+ half cell and a Ag/Ag^+ half cell under standard conditions, what reaction should occur at the anode? You will need to refer to the table of reduction potentials in Appendix E in your textbook. Cu(s) rightarrow Cu^2+(aq) + 2e^- Ag(s) rightarrow Ag+(aq) + e^- Cu^2+(aq) + 2e^- rightarrow Cu(s) Ag^+(aq) + e^- rightarrow Ag(s) If a voltaic cell is constructed consisting of a Cu/Cu^2+ half cell and a Ag/Ag^+ half cell under standard conditions, predict the measured standard cell potential. E degree cell, for the voltaic cell. You will need to refer to the table of reduction potentials in Appendix E in your textbook. 1.26 V -1.26 V 0.462 V -0.462 V 1.14 V What does it mean when a calculated E degree cell for value is a negative value? The reaction as written is spontaneous under standard conditions. The reaction as written is nonspontaneous under standard conditions. The reaction as written is at equilibrium when under standard conditions. Only the reduction half-reaction will occur. Only the oxidation half-reaction will occur.

Explanation / Answer

copper has less reduction potential than silver hence it is under go oxidation

Cu(s) ----------------------> Cu^+2 (aq)+ 2e^-1

6)

   E^0 CELL = E^0 CATHODE - E^0ANODE

                   = REDUCTION POTENTIAL OF CATHODE - REDUTION POTENTIAL OF ANODE

                    = 0.80- 0.34

                   = 0.46V

7) WHEN E^0 CELL IS NEGATIVE

THE REACTION IS WRITTEN IS NONSPONTANEOUS UNDER STANDARD CONDITIONS

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