A solution containing 0.20 M Pb²+ , 1.5 x 10-ó M Pb* , 1.5 × 10-6 M Mn²+ , 0.20 M MnO, , and 0.88 M HNO, was prepared. For this solution, the balanced reduction half-reactions and overall net reaction shown can occur. 5 [Pb*+ + 2e- = Pb²*] 2 [MnO, + 8 H* + 5e- Mn²+ + 4 H,Oj 5 Pb*+ + 2 Mn²+ + 8 H,0=5 Pb²+ + 2MNO, + 16H* E = 1.690 V E = 1.507 V Determine E, AG', and K for this reaction. V AG = J

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A solution containing 0.200.20 M Pb2+Pb2+ , 1.5×10−61.5×10−6 M Pb4+Pb4+ , 1.5×10−61.5×10−6 M Mn2+Mn2+ , 0.200.20 M MnO−4MnO4− , and 0.880.88 M HNO3HNO3 was prepared. For this solution, the balanced reduction half‑reactions and overall net reaction shown can occur.

5[Pb4++2e−↽−−⇀Pb2+]5[Pb4++2e−↽−−⇀Pb2+] ?∘+=1.690 VE+°=1.690 V
2[MnO−4+8H++5e−↽−−⇀Mn2++4H2O]2[MnO4−+8H++5e−↽−−⇀Mn2++4H2O] ?∘−=1.507 VE−°=1.507 V
5Pb4++2Mn2++8H2O↽−−⇀5Pb2++2MnO−4+16H+5Pb4++2Mn2++8H2O↽−−⇀5Pb2++2MnO4−+16H+  
A solution containing 0.20 M Pb²+, 1.5 x 10-6 M Pb* , 1.5 × 10-6 M Mn²+ , 0.20 M MnO, , and 0.88 M HNO, was
prepared. For this solution, the balanced reduction half-reactions and overall net reaction shown can occur.
5 [Pb*+ + 2e- Pb2+]
2 [MnO, + 8 H* + 5e- Mn2+ + 4 H, O]
5 Pb*+ + 2 Mn?+ + 8 H,0=5 Pb2+ + 2 MnO, + 16 H*
E: = 1.690 V
E: = 1.507 V
Determine Ee, AG', and K for this reaction.
V
AG' =
K =
Calculate the value for the cell potential, Ecell, and the free energy, AG, for the given conditions.
Ecell =
AG =
J
Calculate the value of Ecell for this system at equilibrium.
Eçell
V
Determine the pH at which the given concentrations of Pb2+, Pb*+, Mn2+, and MnO, would be at equilibrium.
pH =
Transcribed Image Text:A solution containing 0.20 M Pb²+, 1.5 x 10-6 M Pb* , 1.5 × 10-6 M Mn²+ , 0.20 M MnO, , and 0.88 M HNO, was prepared. For this solution, the balanced reduction half-reactions and overall net reaction shown can occur. 5 [Pb*+ + 2e- Pb2+] 2 [MnO, + 8 H* + 5e- Mn2+ + 4 H, O] 5 Pb*+ + 2 Mn?+ + 8 H,0=5 Pb2+ + 2 MnO, + 16 H* E: = 1.690 V E: = 1.507 V Determine Ee, AG', and K for this reaction. V AG' = K = Calculate the value for the cell potential, Ecell, and the free energy, AG, for the given conditions. Ecell = AG = J Calculate the value of Ecell for this system at equilibrium. Eçell V Determine the pH at which the given concentrations of Pb2+, Pb*+, Mn2+, and MnO, would be at equilibrium. pH =
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