3. Estimate Eº for the half-reaction2H₂O + 2e → H₂ + 2OH-given the following values of AG :H₂O(l) = -237 kJ/molH₂(g) = 0.0OH(aq) = -157 kJ/mole = 0.0Compare this value of E° with the value of E° given in Table 18.1 3' Ž Standard Reduction Potentials at 25°C (298 K) for Many Common Half-ReactionsHalf-ReactionF₂+2e-2FAg+ e → Agcoi te coH₂O₂ + 2H+ 2e → 2H₂OCe +e→Ce"PbO₂ + 4H+SO+2e →PbSO. + 2H₂OMnO, + 4H+ + 3e →MnO₂ + 2H₂O2e + 2H+10 →10 + H₂OMnO, +8H + 5e →Mn² + 4H₂OAu + 3e → AuPbO₂ + 4H+ 2e →Pb² + 2H₂OCl₂ +2e2C1-Cr₂0,² + 14H+ + 6e →2Cr³+ + 7H₂0O₂ + 4H+ 4e → 2H₂OMnO₂ + 4H+ + 2e →Mn²+ + 2H₂O10₂ + 6H + 5e →→₂ + 3H₂OBr₂ +2e2BrVO₂ + 2H+ e→VO² + H₂OAuCl₂ + 3e-Au + 4CNO₂ + 4H+ 3e→NO + 2H₂OCIO₂ + e→CIO,2Hg2+ 2e → Hg₂²⁰Ag+ e → AgHg₂+ 2e →→ 2HgFe +eFe²+O₂ + 2H+ 2e → H₂O₂MnO, + e→→MnO²-1₂ + 2e → 21-Cut + e-Cu8° (V)2.871.991.821.781.701.691.681.601.511.501.461.361.331.231.211.201.091.000.990.960.9540.910.800.800.770.680.560.540.52Half-ReactionO₂ + 2H₂O + 4e →40H™Cu²+ 2e → CuHg,Cl₂ + 2e → 2Hg + 2C1-AgCl+eAg + CrSO2 + 4H+ 2e → H₂SO₂ + H₂OCu²+eCut2H + 2e → H₂Fe + 3e-FePb²+ + 2e →→ PbSn² +2e → SnNi²+ + 2e-NiPbSO4 + 2e →→ Pb + 50,²Cd²+2e →→ CdFe + 2e → FeCr³+ + e→Cr³Cr³+ + 3e-CrZn²+2e → Zn2H₂O + 2e →→H₂ + 20H™Mn +2e →→MnAP+3e AlH₂ + 2e → 2H™Mg2+2e → MgLa" + 3e-LaNa + e-NaCa²+2e →→ CaBa²+2e-BaK' + e-KLi' + e-Ligº (V)0.400.340.340.220.200.160.00-0.036<-0.13<-0.14-0.23<<-0.35-0.40-0.44-0.50-0.73-0.76-0.83-1.18-1.66-2.23-2.37-2.37<-2.71-2.76-2.90-2.92-3.05

3. Estimate Eº for the half-reaction 2H₂O + 2e → H₂ + 2OH* given the following values of AG : H₂O(l) = -237 kJ/mol H₂(g) = 0.0 OH(aq) = -157 kJ/mol e = 0.0 Compare this value of E° with the value of E° given in Table 18.1

3. Estimate Eº for the half-reaction 2H₂O + 2e → H₂ + 2OH* given the following values of AG : H₂O(l) = -237 kJ/mol H₂(g) = 0.0 OH(aq) = -157 kJ/mol e = 0.0 Compare this value of E° with the value of E° given in Table 18.1

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

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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