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Using the standard reduction potentials listed in Appendix E in the textbook, calculate the equilibrium constant for each of the following reactions at 298 K. a. Cu(s)+2Ag+(aq)→Cu2+(aq)+2Ag(s) b. 3Ce4+(aq)+Bi(s)+H2O(l)→3Ce3+(aq)+BiO+(aq)+2H+(aq) c. N2H5+(aq)+4Fe(CN)63−(aq)→N2(g)+5H+(aq)+4Fe(CN)64−(aq)

Using the standard reduction potentials listed in Appendix E in the textbook, calculate the equilibrium constant for each of the following reactions at 298 K. a. Cu(s)+2Ag+(aq)→Cu2+(aq)+2Ag(s) b. 3Ce4+(aq)+Bi(s)+H2O(l)→3Ce3+(aq)+BiO+(aq)+2H+(aq) c. N2H5+(aq)+4Fe(CN)63−(aq)→N2(g)+5H+(aq)+4Fe(CN)64−(aq)

Chemistry: Principles and Practice
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter18: Electrochemistry
Section: Chapter Questions
Problem 18.103QE
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Using the standard reduction potentials listed in Appendix E in the textbook, calculate the equilibrium constant for each of the following reactions at 298 K.

a. Cu(s)+2Ag+(aq)→Cu2+(aq)+2Ag(s)

b. 3Ce4+(aq)+Bi(s)+H2O(l)→3Ce3+(aq)+BiO+(aq)+2H+(aq)

c. N2H5+(aq)+4Fe(CN)63−(aq)→N2(g)+5H+(aq)+4Fe(CN)64−(aq)

E (V) Half-Reaction +0.80 2 H,O(I) + 2e- Half-Reaction E"(V) Ag (ag) +e AgBr(s) + e - Ag(s) + Br (aq) Ag(s) -0.83 H2(8) + 2 OH (ag) 3 OH (aq) +0.10 HO, (ag) + H;O(1) + 2e +0.22 H,O2(aq) + 2 H*(aq) + 2e - 2 Hg() Hg (aq) +0.88 AgCI(s) + e - Ag(s) + C (aq) 2 H,O(1) +1.78 Ag(s) + 2 CN (ag) 2 Ag(s) + Cro (aq) Ag(CN)2 "(aq) + e -0.31 Hg+ (ag) + 2e - +0.79 Ag,CrO,(s) + 2e +0.45 2 Hg (aq) + 2e +0.92 - Agl(s) + e - Ag(s) + F(ag) -0.15 Hg?+(ag) + 2e - Hg(/) +0.85 Ag(s) + 2S,03 (aq) Ag(S,0,), (aq) +e Al* (aq) + 3e - Al(s) +0.01 12(s) + 2e - 21 (aq) +0.54 -1.66 2 10, (aq) + 12 H*(aq) + 10e 2(s) + 6 H;O(1) +1.20 HASO,(aq) + 2 H*(aq) + 2 e - H3ASO3(ag) + H,O(1) +0.56 | K"(ag) + e K(s) -2.92 Ba2*(ag) + 2e Ba(s) -2.90 | Li(aq) + e Li(s) -3.05 BiO (aq) + 2H*(aq) + 3e 2 Br" (aq) +0.32 Mg"(aq) + 2e +1.07 Mn"(ag) + 2e Bi(s) + H,O(1) Mg(s) -2.37 Br(1) + 2e Mn(s) -1.18 2 BrO, (aq) + 12 H"(aq) + 10e - Br,(1) + 6 H,O(1) +1.52 Mn? (aq) + 2 H;0(1) MnO2(s) + 4 H*(aq) + 2e +1.23 - 2 CO(8) + 2 H*(aq) + 2e Ca*(aq) + 2 e H,C,0,(aq) -0.49 Mno, "(aq) + 8 H"(aq) + 5e - Mno, "(aq) + 2 H2O(I) + 3e - -0.40 HNO,(aq) + H*(aq) + e Mn (ag) + 4 H;O(1) +1.51 Ca(s) -2.87 MnO3(s) + 4OH (aq) +0.59 Cd"(ag) + 2e - Cd(s) NO(g) + H,O(1) +1.00 Ce*"(aq) + e Cl2(8) + 2e - 2C (ag) 2 HCIO(aq) + 2 H*(aq) + 2e - CIO (ag) + H0(1) + 2e- Ce"(aq) +1.61 Na(8) + 4 H,O(I) + 4e 4 OH (ag) + N;H(aq) -1.16 +1.36 N,(8) + 5H'(aq) + 4e NHs (aq) --0.23 Cl2(8) + 2 H,O(1) CI (aq) + 20H (aq) +1.63 NO, "(ag) + 4 H*(aq) + 3e NO(g) + 2 H20(1) +0.96 +0.89 Na'(ag) +e- Na(s) -2.71 2 CI0, (aq) + 12 H"(aq) + 10e - Cl2(g) + 6 H,0(1) +1.47 N2+ (ag) + 2e- Ni(s) --0.28 Co* (ag) + 2e Co(s) --0.28 Oz(g) + 4 H'(aq) + 4e- +1.84 |O,(g) + 2 H20(1) + 4e 2 H,0(1) +1.23 Co"(aq) Cr* (aq) + 3e - Co(ag) + e 4 OH (aq) +0.40 - Cr(s) - Cr*(aq) -0.74 O2(8) + 2 H*(aq) + 2 e H;O2(aq) +0.68 -0.41 O,(g) + 2 H'(aq) + 2 e - O2(8) + H,O(1) Cr" (aq) + e Cr,0, (ag) + 14 H"(aq) + 6e 2 Cr"(aq) +7 H,O(1) +1.33 Pb (aq) + 2e Pb(s) +2.07 - -0.13 Cro? (aq) + 4 H,0(1) + 3e -0.13 PbO,(s) + HSO, (aq) + 3H"(aq) + 2e +1.69 Cr(OH),(s) + 5OH (aq) PbSO,(s) + 2 H,O(1) Cu"(aq) + 2 e" Cu(s) +0.34 PbSO,(s) + H'(ag) + 2e Pb(s) + HSO, (aq) -0.36 Cu2* (ag) + e - Cu"(aq) +0.15 PtCl2-(ag) + 2e - Pt(s) + 4 CI (ag) +0.73 Cu"(ag) + e - Cu(s) +0.52 S(s) + 2H'(ag) + 2e H,S(g) +0.14 -0.19 H,SO(aq) + 4 H*(ag) + 4e +2.87 HSO, (aq) + 3H*(aq) + 2 e -0.44 Sn*(aq) + 2e S(s) +3 H,O(1) - H,SO,(ag) + H,O(1) +0.45 Cu(s) +I(ag) F2(g) + 2e - 2F (aq) · Fe(s) Cul(s) +e +0.17 Fe* (ag) + 2e Sn(s) --0.14 - F* (aq) +0.77 Sn* (ag) + 2e Sn (aq) Fe* (ag) + e +0.15 Fe(CN), (aq) + e Fe(CN), (aq) +0.36 Vo, (ag) + 2 H*(ag) +e vo* (aq) + H;0(1) +1.00 2H*(aq) + 2e H2(8) 0.00 Zn*(ag) + 2e Zn(s) -0.76
Transcribed Image Text:E (V) Half-Reaction +0.80 2 H,O(I) + 2e- Half-Reaction E"(V) Ag (ag) +e AgBr(s) + e - Ag(s) + Br (aq) Ag(s) -0.83 H2(8) + 2 OH (ag) 3 OH (aq) +0.10 HO, (ag) + H;O(1) + 2e +0.22 H,O2(aq) + 2 H*(aq) + 2e - 2 Hg() Hg (aq) +0.88 AgCI(s) + e - Ag(s) + C (aq) 2 H,O(1) +1.78 Ag(s) + 2 CN (ag) 2 Ag(s) + Cro (aq) Ag(CN)2 "(aq) + e -0.31 Hg+ (ag) + 2e - +0.79 Ag,CrO,(s) + 2e +0.45 2 Hg (aq) + 2e +0.92 - Agl(s) + e - Ag(s) + F(ag) -0.15 Hg?+(ag) + 2e - Hg(/) +0.85 Ag(s) + 2S,03 (aq) Ag(S,0,), (aq) +e Al* (aq) + 3e - Al(s) +0.01 12(s) + 2e - 21 (aq) +0.54 -1.66 2 10, (aq) + 12 H*(aq) + 10e 2(s) + 6 H;O(1) +1.20 HASO,(aq) + 2 H*(aq) + 2 e - H3ASO3(ag) + H,O(1) +0.56 | K"(ag) + e K(s) -2.92 Ba2*(ag) + 2e Ba(s) -2.90 | Li(aq) + e Li(s) -3.05 BiO (aq) + 2H*(aq) + 3e 2 Br" (aq) +0.32 Mg"(aq) + 2e +1.07 Mn"(ag) + 2e Bi(s) + H,O(1) Mg(s) -2.37 Br(1) + 2e Mn(s) -1.18 2 BrO, (aq) + 12 H"(aq) + 10e - Br,(1) + 6 H,O(1) +1.52 Mn? (aq) + 2 H;0(1) MnO2(s) + 4 H*(aq) + 2e +1.23 - 2 CO(8) + 2 H*(aq) + 2e Ca*(aq) + 2 e H,C,0,(aq) -0.49 Mno, "(aq) + 8 H"(aq) + 5e - Mno, "(aq) + 2 H2O(I) + 3e - -0.40 HNO,(aq) + H*(aq) + e Mn (ag) + 4 H;O(1) +1.51 Ca(s) -2.87 MnO3(s) + 4OH (aq) +0.59 Cd"(ag) + 2e - Cd(s) NO(g) + H,O(1) +1.00 Ce*"(aq) + e Cl2(8) + 2e - 2C (ag) 2 HCIO(aq) + 2 H*(aq) + 2e - CIO (ag) + H0(1) + 2e- Ce"(aq) +1.61 Na(8) + 4 H,O(I) + 4e 4 OH (ag) + N;H(aq) -1.16 +1.36 N,(8) + 5H'(aq) + 4e NHs (aq) --0.23 Cl2(8) + 2 H,O(1) CI (aq) + 20H (aq) +1.63 NO, "(ag) + 4 H*(aq) + 3e NO(g) + 2 H20(1) +0.96 +0.89 Na'(ag) +e- Na(s) -2.71 2 CI0, (aq) + 12 H"(aq) + 10e - Cl2(g) + 6 H,0(1) +1.47 N2+ (ag) + 2e- Ni(s) --0.28 Co* (ag) + 2e Co(s) --0.28 Oz(g) + 4 H'(aq) + 4e- +1.84 |O,(g) + 2 H20(1) + 4e 2 H,0(1) +1.23 Co"(aq) Cr* (aq) + 3e - Co(ag) + e 4 OH (aq) +0.40 - Cr(s) - Cr*(aq) -0.74 O2(8) + 2 H*(aq) + 2 e H;O2(aq) +0.68 -0.41 O,(g) + 2 H'(aq) + 2 e - O2(8) + H,O(1) Cr" (aq) + e Cr,0, (ag) + 14 H"(aq) + 6e 2 Cr"(aq) +7 H,O(1) +1.33 Pb (aq) + 2e Pb(s) +2.07 - -0.13 Cro? (aq) + 4 H,0(1) + 3e -0.13 PbO,(s) + HSO, (aq) + 3H"(aq) + 2e +1.69 Cr(OH),(s) + 5OH (aq) PbSO,(s) + 2 H,O(1) Cu"(aq) + 2 e" Cu(s) +0.34 PbSO,(s) + H'(ag) + 2e Pb(s) + HSO, (aq) -0.36 Cu2* (ag) + e - Cu"(aq) +0.15 PtCl2-(ag) + 2e - Pt(s) + 4 CI (ag) +0.73 Cu"(ag) + e - Cu(s) +0.52 S(s) + 2H'(ag) + 2e H,S(g) +0.14 -0.19 H,SO(aq) + 4 H*(ag) + 4e +2.87 HSO, (aq) + 3H*(aq) + 2 e -0.44 Sn*(aq) + 2e S(s) +3 H,O(1) - H,SO,(ag) + H,O(1) +0.45 Cu(s) +I(ag) F2(g) + 2e - 2F (aq) · Fe(s) Cul(s) +e +0.17 Fe* (ag) + 2e Sn(s) --0.14 - F* (aq) +0.77 Sn* (ag) + 2e Sn (aq) Fe* (ag) + e +0.15 Fe(CN), (aq) + e Fe(CN), (aq) +0.36 Vo, (ag) + 2 H*(ag) +e vo* (aq) + H;0(1) +1.00 2H*(aq) + 2e H2(8) 0.00 Zn*(ag) + 2e Zn(s) -0.76
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