Posted by **valenti** on Wednesday, April 23, 2008 at 10:22am.

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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