At standard conditions, is theelectrochemical reactionspontaneous?Anode: NO3- + 2H+ + e- --> NO2 +H2OCathode: 2H+ + 2e- --> H2Table 7.2 Standard potentials at 298 K. (a) In clectrochemical orderReduction half ceactionReduction half-reactionCu" +eCuSe + 2 SStrongly oxidiringI1XeO, + 2r +2 XeO, + SH,0+2e 20,+ 2H + 20, +H0S,여 +2e→250Ag +eACo" + C1,0, + 2+ 2 21,0+0.163.0+0.15+2.87+0,07+2.0700021+ ,a, by definition-0.04+2.05+1.980,+10+ 2 HO, +Or0.08+1.78-013In' lnSe +2e SnAglrN"+ NICa+ 2CoIn"+ InAu' +e Au+1.69-0.141.670.142HCIO+ 2+ 2e a, +211,0+1.630.150.2321IO+ 2+ 2e e,+ 2H0MnO;+ H + SeMn" + 4H,0Mn" MnAu+ eAu+1.60-0.28+1.1-0.34+1.51-0.34PSO, + 2b+ So1.40+1.360.37Cr0 + 141' + be 2Cr" +7H,00,+H0+ 0, + 20H0,+ 4+ 4 21,0do, + 2r+ 2-do; +1,0Mno, + 4+ 2+Ma" + 211,0Br,+ 2 281.33-0.40+1.24Inrln-0401.230.41e+ leIn+ 2e In1.230.44+1.23-0.44+1.09-0.4840.97In" In-0.49NO, ++ NO+ 21,00.960.61+0.920.74CIO+HO+ 2 d+ 201Hg" + 2e -HgZa" + 2ZnCa(OH), + 2 Gd 20H211,0+ 2 1, + 20+0.9-0.76+0.6NO, + 2r +e NO, +HO40.80-0.91Mn + 2eMnVi+ 2V+0.79-LIB+0.77-L19BO +H,0+ 2 r+ 20H11 S0,+ 22g SoMno + 211,0+ 2e Mno, + 4OHMno, eMaO+0.7616340.62A A-1.66+0.601.79+0.56Se+ S-2.09Mg" + 2MgCe CeL laNa NaCa+2 CaSe" + 2 SeBa laRa+ 2Ra+0.54236CU Cu5+23NIOOH + H0 Ni(OI), + OrAg,Cro, + 2e2Ag+ Co0,+ 2H,0+e4OHCo, +1,0 + 2 CIO; + 20H(Fe(CN) [(CN)Cu+ 2e CuHgCI, +2 2Hg+20Aatr- Ag+ C+0.52-248+0.53-2.520.49-271+0.45-2.8740.40-289+0.36-2.9140.36-292+0.34-2.9240.27Rb' +e Rb-2.9340.22K*+rK2.930.20-305

Answered: Image /qna-images/answer/7f6b244f-38dd-4a23-b4c0-419184d0b202.jpg

At standard conditions, is the electrochemical reaction spontaneous? Anode: NO3- + 2H+ + e- --> NO2 + H2O Cathode: 2H+ + 2e- --> H2 Table 7.2 Standard potentials at 298 K. (a) In clectrechemical order Reduction half ceaction Reduction half reaction Strengly oxidiring Cu"+ Cu +16 +3.0 +0.15 Ag A r .07 0,+ 2H+ 0,+0 +2.0 0.00 +2.05 a by definition Ag+A Co Ce 10, + 2+ 2 210 0.04 .0 G13 In in Se+ Sn Au'+ Au 0.14 167 0.14 0.15 N NI Ca Ce In" In 0.23 -0.28 MnO; + Ma+ 4H,0 Mn Mn Au A -034 -0.34 1.40 PSO, + so 0.37 Go + 14 + be C" +7H,0 0, +HO+ 0, 20H 0,4 21,0 .40 1.24 In rle -0.40 1.23 123 -0.44 Mao,4 Ma"+ 21,0 r,+ 2 1.23 le+ In -0.44 1.09 S+ 0.48 0.97 In ln 6.49 NO, ++ NO 21,0 0.96 061 -0.74 CIO +HO+2 -d+20 +0.9 Za"+ Ze -0.76 40.6 NO, +2r NO, +HO 211,0+ 2 , + 20 683 0.10 -091 Mn+ 2eMn V V +0.79 --LIE +0.77 -L19 OH0+ r+ 20H 0, 2g so Mno+210 Meo,4O Mao, MaO 1+ 2 +0.76 --163 042 A NA -166 0 1.79 0.56 Se -2.09 +0.54 0.52 -2.36 Ce Ce L la Na Na C+ Ca Se 2 Se -246 5+ -2.52 NIOOHHO NO), Or ACrO, + 2e2Ag+Co O,+ 2H,0+ HOH 0.9 -2.71 +0.45 -2.87 40.00 -2.89 40. 291 -2.91 [CN), (CN 0.6 Ra Ra -2.92 +034 -2.92 40.27 Rb +Rb -2.93 Adr Ag C 40.22 -293 +0.0 -305

At standard conditions, is the electrochemical reaction spontaneous? Anode: NO3- + 2H+ + e- --> NO2 + H2O Cathode: 2H+ + 2e- --> H2 Table 7.2 Standard potentials at 298 K. (a) In clectrechemical order Reduction half ceaction Reduction half reaction Strengly oxidiring Cu"+ Cu +16 +3.0 +0.15 Ag A r .07 0,+ 2H+ 0,+0 +2.0 0.00 +2.05 a by definition Ag+A Co Ce 10, + 2+ 2 210 0.04 .0 G13 In in Se+ Sn Au'+ Au 0.14 167 0.14 0.15 N NI Ca Ce In" In 0.23 -0.28 MnO; + Ma+ 4H,0 Mn Mn Au A -034 -0.34 1.40 PSO, + so 0.37 Go + 14 + be C" +7H,0 0, +HO+ 0, 20H 0,4 21,0 .40 1.24 In rle -0.40 1.23 123 -0.44 Mao,4 Ma"+ 21,0 r,+ 2 1.23 le+ In -0.44 1.09 S+ 0.48 0.97 In ln 6.49 NO, ++ NO 21,0 0.96 061 -0.74 CIO +HO+2 -d+20 +0.9 Za"+ Ze -0.76 40.6 NO, +2r NO, +HO 211,0+ 2 , + 20 683 0.10 -091 Mn+ 2eMn V V +0.79 --LIE +0.77 -L19 OH0+ r+ 20H 0, 2g so Mno+210 Meo,4O Mao, MaO 1+ 2 +0.76 --163 042 A NA -166 0 1.79 0.56 Se -2.09 +0.54 0.52 -2.36 Ce Ce L la Na Na C+ Ca Se 2 Se -246 5+ -2.52 NIOOHHO NO), Or ACrO, + 2e2Ag+Co O,+ 2H,0+ HOH 0.9 -2.71 +0.45 -2.87 40.00 -2.89 40. 291 -2.91 [CN), (CN 0.6 Ra Ra -2.92 +034 -2.92 40.27 Rb +Rb -2.93 Adr Ag C 40.22 -293 +0.0 -305

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 18.44QE: For each of the reactions, calculate E from the table of standard potentials, and state whether the...

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