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A galvanic (voltaic) cell consists of an electrode composed of cadmium in a 1.0 M cadmium ion solution and a second electrode composed of cobalt in a 1.0 M cobalt(II) ion solution, connected by a salt bridge. Calculate the standard potential for this cell at 25oC.

A galvanic (voltaic) cell consists of an electrode composed of cadmium in a 1.0 M cadmium ion solution and a second electrode composed of cobalt in a 1.0 M cobalt(II) ion solution, connected by a salt bridge. Calculate the standard potential for this cell at 25oC.

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
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A galvanic (voltaic) cell consists of an electrode composed of cadmium in a 1.0 M cadmium ion solution and a second electrode composed of cobalt in a 1.0 M cobalt(II) ion solution, connected by a salt bridge. Calculate the standard potential for this cell at 25oC. Use this list of standard reduction potentials.

Standard Potential Reduction Half-Reaction Ered (V) F2(g) + 2e → 2F (aq) +2.87 O3(g) + 2H3O*(aq) + 2e¯ → O2(g) + 3H2O(1) +2.076 Co (aq) + e → Co2"(aq) +1.92 H2O2(aq) + 2H3O*(aq) + 2e → 2H20(1) +1.776 N20(g) + 2H3O*(aq) + 2e¯ → N2(g) + 3H2O(1) +1.766 3+ Ce+*(aq) + e¯ → Ce*(aq) +1.72 PbO2(s) + SO4² (aq) + 4H3O*(aq)+ 2e¯ → PbSO4(s) + 6H2O(1) +1.6913 MnO4 (aq) + 4H3O*(aq) + 3e¯ → MnO2(s) + 6H2O(1) +1.679 NiO2(s) + 4H3O*(aq) + 2e¯ → Ni²*(aq) + 6H2O(1) +1.678 |HCIO-(aq) + 2HЗО"(аq) + 2е — HCIO (aq) + зн O(1) +1.645 2 2HCIO2(aq) + 6H3O"(aq) + 6e¯ → Cl 2 (g) + 10H O(1) +1.628 2HCIO(aq) + 2H3O"(aq) + 2e¯ → Cl2(g) +4H20(1) +1.611 H5IO6(s) + H3O*(aq) + 2e¯ → I03 (aq) + 4H2O(1) +1.601 RuO 4° (aq) + 4 H3O' (aq) + 2e → Ruo 2 (ад) + 6H20(1) +1.6 |2NO(g) + 2H3O*(aq) + 2e¯ → N2O(g) + 3H20(1) +1.591 IO 4 (aq) + 2H3O"(aq) + 2e¯ → IO 3 (aq) + 3H20(1) +1.589 MnO4 (aq) + 8H3O*(aq) + 5e¯ → Mn²"(aq) + 12H2O(1) +1.507 2+ RuO 2 * (aq) + 2 Hҙ0"(aq) + e- — Ru(OH) 2 (aq) + 2H2O(1) +1.5 3+ Au"(aq) + 3e Au(s) +1.498 |2CIO3 (aq) + 12H3O"(aq) + 10e¯ –→ Cl 2 (g) + 18H 2 O(1) +1.47 PbO2(s) + 4H3O*(aq)+ 2e¯ → Pb-"(aq) + 6H2O(1) +1.455 |ClO3 (aq) + 6H3O*(aq) + 6e¯ → CI (aq) + 9H2O(1) +1.451 BrO3 (aq) + 6H3O*(aq) + 5e - → 1/2B12(1) + 9H2O(1) +1.482 HOI(aq) + H3O"(aq) + e¯→ 1/2 I 2 (s) + 2H2O(1) +1.430
Transcribed Image Text:Standard Potential Reduction Half-Reaction Ered (V) F2(g) + 2e → 2F (aq) +2.87 O3(g) + 2H3O*(aq) + 2e¯ → O2(g) + 3H2O(1) +2.076 Co (aq) + e → Co2"(aq) +1.92 H2O2(aq) + 2H3O*(aq) + 2e → 2H20(1) +1.776 N20(g) + 2H3O*(aq) + 2e¯ → N2(g) + 3H2O(1) +1.766 3+ Ce+*(aq) + e¯ → Ce*(aq) +1.72 PbO2(s) + SO4² (aq) + 4H3O*(aq)+ 2e¯ → PbSO4(s) + 6H2O(1) +1.6913 MnO4 (aq) + 4H3O*(aq) + 3e¯ → MnO2(s) + 6H2O(1) +1.679 NiO2(s) + 4H3O*(aq) + 2e¯ → Ni²*(aq) + 6H2O(1) +1.678 |HCIO-(aq) + 2HЗО"(аq) + 2е — HCIO (aq) + зн O(1) +1.645 2 2HCIO2(aq) + 6H3O"(aq) + 6e¯ → Cl 2 (g) + 10H O(1) +1.628 2HCIO(aq) + 2H3O"(aq) + 2e¯ → Cl2(g) +4H20(1) +1.611 H5IO6(s) + H3O*(aq) + 2e¯ → I03 (aq) + 4H2O(1) +1.601 RuO 4° (aq) + 4 H3O' (aq) + 2e → Ruo 2 (ад) + 6H20(1) +1.6 |2NO(g) + 2H3O*(aq) + 2e¯ → N2O(g) + 3H20(1) +1.591 IO 4 (aq) + 2H3O"(aq) + 2e¯ → IO 3 (aq) + 3H20(1) +1.589 MnO4 (aq) + 8H3O*(aq) + 5e¯ → Mn²"(aq) + 12H2O(1) +1.507 2+ RuO 2 * (aq) + 2 Hҙ0"(aq) + e- — Ru(OH) 2 (aq) + 2H2O(1) +1.5 3+ Au"(aq) + 3e Au(s) +1.498 |2CIO3 (aq) + 12H3O"(aq) + 10e¯ –→ Cl 2 (g) + 18H 2 O(1) +1.47 PbO2(s) + 4H3O*(aq)+ 2e¯ → Pb-"(aq) + 6H2O(1) +1.455 |ClO3 (aq) + 6H3O*(aq) + 6e¯ → CI (aq) + 9H2O(1) +1.451 BrO3 (aq) + 6H3O*(aq) + 5e - → 1/2B12(1) + 9H2O(1) +1.482 HOI(aq) + H3O"(aq) + e¯→ 1/2 I 2 (s) + 2H2O(1) +1.430
[Co(NH3)6]"(aq) + e¯ → [Co(NH3)6]**(aq) |-0.108 Pb2"(aq) + 2e → Pb(s) |-0.13 Sn2"(aq) + 2e Sn(s) |-0.14 O2(g) + 2H20(1) + 2e¯ → H2O2(1) + 20H (aq) |-0.146 AgI(s) + e → Ag(s) + I¯ (aq) |-0.15224 |CO2(g) + 2H3O+(aq) + 2e¯ → HCO2H(s) + 2H2O(1) |-0.199 Cu(OH)2(s) + 2e¯ → Cu(s) + 20H (aq) -0.222 Ni2" (aq) + 2e → Ni(s) -0.26 Со- (аq) + 2е Co(s) |-0.28 PbSO4(s) + 2e → Pb(s) + SO4² (aq) |-0.3588 SeO32 (aq) + 3H2O(1) + 4e Se + 60H¯(aq) -0.366 Cd2*(aq) + 2e -→ Cd(s) -0.403 Cr*(aq) + e • Cr²+( *(aq) -0.407 |Cu(CN)2- (aq) + e Cu(s) + 2CN - (aq) -0.429 Fe2*(aq) + 2e→ Fe(s) |-0.44 NO2 (g) + H2O(1)+ 3e NO(g) + 20H (aq) |-0.46 S(s) + 2e → S² (aq) -0.48 2CO2(g) + 2H3O*(aq) + 2e¯ → H2C2O4(s) + H2O(1) -0.49 |TiO2(s) + 4H3O*+ 2e¯ → Ti²"(aq) + 6H2O(1) |-0.502 Au(CN)2 - (aq) +e¯ → Au(s) + 20CN (aq) |-0.60 Cr*(aq) + 3e Cr(s) -0.74 Zn-"(aq) + 2e¯→ Zn(s) |-0.76 Cd(OH)2(s) + 2e ¯→ Cd(s) + 20H-(aq) -0.809 | 2H2O(1) + 2e¯ → H2(g) + 20H¯(aq) -0.83
Transcribed Image Text:[Co(NH3)6]"(aq) + e¯ → [Co(NH3)6]**(aq) |-0.108 Pb2"(aq) + 2e → Pb(s) |-0.13 Sn2"(aq) + 2e Sn(s) |-0.14 O2(g) + 2H20(1) + 2e¯ → H2O2(1) + 20H (aq) |-0.146 AgI(s) + e → Ag(s) + I¯ (aq) |-0.15224 |CO2(g) + 2H3O+(aq) + 2e¯ → HCO2H(s) + 2H2O(1) |-0.199 Cu(OH)2(s) + 2e¯ → Cu(s) + 20H (aq) -0.222 Ni2" (aq) + 2e → Ni(s) -0.26 Со- (аq) + 2е Co(s) |-0.28 PbSO4(s) + 2e → Pb(s) + SO4² (aq) |-0.3588 SeO32 (aq) + 3H2O(1) + 4e Se + 60H¯(aq) -0.366 Cd2*(aq) + 2e -→ Cd(s) -0.403 Cr*(aq) + e • Cr²+( *(aq) -0.407 |Cu(CN)2- (aq) + e Cu(s) + 2CN - (aq) -0.429 Fe2*(aq) + 2e→ Fe(s) |-0.44 NO2 (g) + H2O(1)+ 3e NO(g) + 20H (aq) |-0.46 S(s) + 2e → S² (aq) -0.48 2CO2(g) + 2H3O*(aq) + 2e¯ → H2C2O4(s) + H2O(1) -0.49 |TiO2(s) + 4H3O*+ 2e¯ → Ti²"(aq) + 6H2O(1) |-0.502 Au(CN)2 - (aq) +e¯ → Au(s) + 20CN (aq) |-0.60 Cr*(aq) + 3e Cr(s) -0.74 Zn-"(aq) + 2e¯→ Zn(s) |-0.76 Cd(OH)2(s) + 2e ¯→ Cd(s) + 20H-(aq) -0.809 | 2H2O(1) + 2e¯ → H2(g) + 20H¯(aq) -0.83
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