Half-Reaction E°(V) Half-Reaction E°(V) +0.80| 2 H2O(1) + 2 e Н- (g) + 2ОН (ад) ЗОН (ад) Ag*(aq) + e¯ Ag(s) -0.83 AgBr(s) + e¯ Ag(s) + Br (aq) +0.10 | НО- (ад) + H20(1) + 2 e +0.88 AgCl(s) + e¯ Ag(s) + Cl¯(aq) +0.22 | Н2О2(aд) + 2 H"(ад) + 2е 2 H20(1) +1.78 Ag(CN)2 ¯(aq) + e¯ Ag(s) + 2 CN¯(aq) -0.31 Hg2* (aq) + 2 e- 2 Hg(1) +0.79 2 Ag(s) + CrO²-(aq) +0.45 Hg3* (aq) +0.92 2 Hg2+ (aq) + 2 e -0.15 | Hg?+ (aq) + 2 e¯ Ag2CrO4(s) + 2 e AgI(s) + e¯ → Ag(s) + I¯(aq) Hg(1) +0.85 Ag(S203)2 (aq) + e¯ → Ag(s) + 2 S2O²¯(aq) +0.01 I2(s) + 2 e- 21(aq) +0.54 Al3+ (aq) + 3 e¯ → Al(s) -1.66 | 2 IO3 (aq) + 12 H*(aq) + 10 e¯ I2(s) + 6 H2O(1) +1.20 +0.56 | к (аq) + e НЗASO4(аq) + 2H' (ад) + 2 е Ba2+(aq) + 2 e H3ASO3(aq) + H½O(1) K(s) -2.92 Ba(s) -2.90 | Li*(aq) + e¯ Li(s) -3.05 BiO"(aq) + 2 H" (ад) + 3е Bi(s) + H2O(1) +0.32 | Mg²+(aq) + 2 e¯ Mg(s) -2.37 Br2(1) + 2 e- 2 Br¯(aq) +1.07 Mn2+ (aq) + 2 e Mn(s) -1.18 2 BrОз (аg) + 12 H'(аg) + 10 е Br2(1) + 6 H2O(1) +1.52 Mn²+ (aq) + 2 H2O(1) MnO2(s) + 4 H*(aq) + 2 e¯ +1.23 2 СО2(g) + 2 Н" (ад) + 2 е H,C2O4(aq) -0.49 → Mn2+ (aq) + 4 H2O(1) MnO4 (ag) + 8H' (ад) + 5 е +1.51 Са" (ад) + 2 е Ca(s) -2.87 MnO4 (aq) + 2 H2O(1) + 3 e — MnO2(s) + 40Н (аq) +0.59 Cd2* (aq) + 2 e → Cd(s) -0.40 HNO2(ag) + н"ад) + е — NO(8) + H2O(1) +1.00 Ce*(aq) + e Ce3+ (aq) +1.61 N2(8) + 4 H2O(1) + 4 e¯ → 4 OH (aq) + N2H4(aq) -1.16 Cl2(8) + 2 e- - 2 CI¯(aq) +1.36 N2(8) + 5 H*(aq) + 4 e- N2H5* (aq) -0.23 2 HCIO(ag) + 2 H"(ад) + 2е Cl2(8) + 2 H20(1) +1.63 NO3 (aq) + 4Н' (ад) + 3е NO(g) + 2 H20(1) +0.96 ClO (aq) + H20(1) + 2 e- CI(aq) + 2 OH (aq) +0.89 Na*(ag) + e¯ → Na(s) -2.71 2 ClO3 (aq) + 12 H*(aq) + 10e Cl2(8) + 6 H20(1) +1.47 Ni2+ (aq) + 2 e Ni(s) -0.28 Co2+ (aq) + 2 e¯ Co(s) -0.28 O2(8) + 4 H*(aq) + 4 e¯ –→ 2 H2O(1) +1.23 Со'* (аg) + е — Со?* (ад) +1.84 O2(8) + 2 H20(1) + 4 e¯ → 4 OH¯(aq) +0.40 Cr3+ (aq) + 3 e Cr(s) -0.74 | 02(8) + 2 H*(aq) + 2 e H2O2(aq) +0.68 Cr3+(ag) + e¯ → Cr²+ (aq) -0.41 Оз(8) + 2 H' (аg) + 2 е O2(8) + H2O(I) +2.07 · 2 Cr3+ (aq) + 7 H2O(I) Pb2+ (aq) + 2 e Cr,0,2-(aq) + 14 H*(aq) + 6 e¯ - +1.33 Pb(s) -0.13 Cro?- (aq) + 4 H2O(1) + 3 e → -0.13 PЬO2 (s) + HSO+ (аq) + 3H*(аg) + 2 е +1.69 Cr(ОН)3(s) + 5 ОН (ад) PBSO4(s) + 2 H20(1) Cu2*(ag) + 2 e¯ → Cu(s) +0.34 PDSO4(s) + H" (ад) + 2е Pb(s) + HSO4¯(aq) -0.36 Cu*(aq) PtCl?- (aq) + 2 e Pt(s) + 4 CI (aq) +0.73 Cu2+(aq) + e¯ → +0.15 S(s) + 2 H*(aq) + 2 e- H,S(g) +0.14 → Cu(s) → Cu(s) + I¯(aq) Cu*(aq) + e +0.52 Cul(s) + e -0.19 H2SO3(aq) + 4 H*(aq) + 4 e¯ → S(s) + 3 H2O(1) +0.45 F2(8) + 2 e- 2 F (aq) +2.87 HSO4 (aq) + 3 H*(aq) + 2 e- H;SO3(aq) + H20(1) +0.17 Fe2+ (aq) + 2 e Fe(s) -0.44 Sn²+(aq) + 2 e Sn(s) -0.14 Fes+ (ag) + e¯ → Fe2+ (aq) +0.77| Snt+(aq) + 2 e¯ Sn²+ (aq) +0.15 Fe(CN), (aq) +0.36 | VO,*(aq) + 2 H*(aq) + e¯ VO²* (aq) + H20(1) +1.00 Fe(CN), (aq) + e¯ 2 H*(aq) + 2 e Н (8) 0.00 | Zn2+(aq) + 2 e- Zn(s) -0.76

What is AG° (in kJ/mol) for the autoionization of water at 25°C? R = 8.314462 J/K-mol IMPORTANT: When entering your answer: • Enter the number only (no units) • Do not leave any spaces • Include the sign if your answer is negative (not necessary for positive values) • Use a leading zero before the decimal when necessary Report your number to 1 decimal place (regardless of the significant figures) • Correctly round your answer to the 1st decimal place (margin of allowed error is only ± 0.1, so always use un-rounded numbers in your calculations). If the last digits are zeros they will not display once you click away, but the answer will still be marked correct. Examples: 12.3 or -0.4

Part b For the reaction given in Part A, how much heat is absorbed when 2.60 mol of A reacts? And part c said At what temperature Teq do the forward and reverse corrosion reactions occur in equilibrium?

(a) Choose all of the statements from below which correctly describe issues pertaining to the relationship between the emf of a reaction and its Gibbs free energy change. ____The Gibbs free energy change and emf values of a reaction have opposite algebraic signs (+ vs. -).____A Gibbs free energy change involves moles of substances whereas an emf involves coulombs of electrons.____A coulomb of particles is more particles than a mole of particles.____Faraday's constant is not used to interconvert a Gibbs free energy change and a reaction emf.____A Gibbs free energy change involves coulombs of substances whereas an emf involves moles of electrons.Calculate the standard Gibbs free energy changes at 25 oC for each of the reactions shown below using the Eo values given. Select whether each of these reactions is nonspontaneous, at equilibrium, or spontaneous under standard conditions. (a) 1 Al3+(aq) + 3 Ag(s)  1 Al(s) + 3 Ag+(aq) Eo = -2.459 V Go =________  kJ/mol ____nonspontaneous…