chemistry

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Could I get some help with these please?

Thanks
Calculate the electrical potential (V).
Ag/1M Ag+1// 1M Fe+3/Fe
Ag2+( aq ) + e – Ag+( aq ) 1.98
Fe3+( aq ) + 3e – Fe(s) –0.04
2. A voltaic cell is reconstructed used electrodes based on the following half reactions:
Pb2+ ( aq ) + 2e – Pb (s) -0.13V
Mn2+ ( aq ) + 2e – Mn (s) -1.19V
a. What is the anode and what is the cathode in this cell?
b. What is the standard cell potential?
Pb2+ ( aq ) + 2e – Pb (s) -0.13V
Mn2+ ( aq ) + 2e – Mn (s) -1.19V
Pb2+ ( aq ) + 2e – Pb (s) -0.13V
Mn (s) Mn2+ ( aq ) + 2e – +1.19V

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