State the anode and cathode half

State the anode and cathode half - reactions

Reference no: EM13252058

The reactions represented below are all spoontaneous as written. For each, write the anode and cathode half - reactions and indicate the signs of the electrodes.

2 Ag+ (aq) + Pb(s) ----> 2 Ag(s) + Pb2+ (aq)
3 Cu2+(aq) + 2Cr(s) --? 3 Cu(s) + 2 Cr3+ (aq)
Ni2+ (aq) + Zn(s) ? Ni(s) + Zn2+ (aq)

Using Le Chateleir's principle, explanin the effect on teh cell potential of decreasing the Fe2+ ion concentration from 1.0M to 0.1M for each of the following reactions. The concentration of the other solution remains at 1.0M.

Fe2+ (aq) +Zn(s) ? Fe (s) + Zn2+ (aq)
Fe(s) + Cu2+ (aq) ? Fe2+ (aq) + Cu(s)

Using the Nernst equation, calculate the effect on the cell potential of increasing the Fe2+ ion concentration from 1.0 M to 2.0 M for each of the following reactions. The concentration of the other solution remains at 1.0 M

Fe+2(aq) + Zn(s) ? Fe(s) + Zn2+ (aq)
Fe(s) + Cu2+ (aq) ? Fe2+ (aq) + Cu(s)

Reference no: EM13252058

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