Heart pacemakers are often powered by lithium-silver chromate "button"batteries. The overall cell reaction is:2 Li(s) + Ag2CrO4(s) → Li2CrO4(s) + 2 Ag(s)(a) Lithium metal is the reactant at one of the electrodes of the battery. Is it the anodeor the cathode?(b) Choose the two half-reactions from a table of standard reduction potentials that mostclosely approximate the reaction that occur within the battery. What is the standardvoltage generated by a cell operating with these half-reactions?(c) The actual value is about +3.5 V for this pacemaker cell. How does that compare towhat you've shown me in (b)?(d) Calculate the voltage at body temperature.Standard reduction potentials are as below:Half-ReactionAgt (aq) + e Ag(s)AgBr(s) + ¢* * Ag(s) + Br"(aq)AgCl(s) + e Ag(s) + Cl(aq)Ag(CN)₂ (aq) +eAg(s) + 2 CN" (aq)AgaCrO₂ (s) + 2 e 2 Ag(s) + CrO2(aq)Agl(s) + e Ag(s) + (aq)Ag(S₂03)2(aq) +eAg(s) + 2S₂O3(aq)Al³+ (aq) + 3e Al(s)H₂AsO₂(aq) + 2H*(aq) + 2e H₂AsO₂(aq) + H₂O(1)Ba²+ (aq) + 2 e Ba(s)BIO+ (aq) + 2 H*(aq) + 3 e² → Bi(s) + H₂O(1)Br₂(1) +2 e 2 Br (aq)2 Bro, (aq) + 12 H*(aq) + 10 e Br₂(1) + 6H₂O(1)2 CO₂(g) + 2H(aq) + 2eH₂C₂O4(aq)Ca²+ (aq) + 2eCa(s)Cd(s)Ce³(aq)Cu²+ (aq) + 2eCu²+ (aq) + eCu (aq) +Cd²+ (aq) + 2eCe+ (aq) +Cl₂(g) + 2e- 2 C1 (aq)2 HCIO(aq) + 2H*(aq) + 2eCl₂(g) + 2 H₂O(1)CIO (aq) + H₂O(1) + 2e Cl(aq) + 2OH(aq)2 CIO, (aq) + 12 H(aq) + 10eCl₂(g) + 6H₂O(1)Co²+ (aq) + 2eCo(s)Cot(aq)Cost(aq) +ẽ+1.84 O₂(g) + 2H₂O(l) + 4e¯Cr³+ (aq) + 3eCr(s)-0.74 O₂(g) + 2H(aq) + 2e →Cr³+ (aq) + Cr²+ (aq)-0.41 O₂(g) + 2H*(aq) + 2eCr₂O₂(aq) + 14 H(aq) + 6e-2 Cr³+ (aq) +7H₂O() +1.33 Pb²+ (aq) + 2e Pb(s)CrO2(aq) + 4H₂O(1) + 3e--0.13 PbO₂(s) + HSO (aq) + 3H*(aq) + 2 eCr(OH),(s) + 5OH(aq)Cu(s)Cu* (aq)Cu(s)Cu(s) + (aq)Cul(s) +F₂(g) + 2e2F (aq)Fe²+ (aq) + 2eFe(s)Fe³+ (aq) + eFe²+ (aq)Fe(CN) (aq) + e Fe(CN),(aq)2H*(aq) + 2eE° (V)Half-Reaction+0.80 2 H₂O(1) + 2e H₂(g) + 2OH(aq)+0.10 HO₂ (aq) + H₂O(1) + 2e3OH(aq)+0.22 H₂O₂(aq) + 2H*(aq) + 2e-2H₂O(1)-0.31 Hg (aq) + 2e-2 Hg(1)+0.45 2 Hg (aq) + 2e Hg₂+ (aq)-0.15 Hg2+ (aq) + 2eHg(1)12₂(s) + 2e ► 21 (aq)-1.66 210,(aq) + 12 H(aq) + 10 e 1₂(s) + 6H₂O(1)+0.56 K*(aq) + eK(s)-2.90 Li*(aq) +eLi(s)+0.01H₂(g)+0.32 Mg (aq) + 2eMg(s)+1.07 Mn²(aq) + 2e"- Mn(s)+1.52 MnO₂(s) + 4H(aq) + 2e →→→Mn²+ (aq) + 2 H₂O(1)-0.49MnO, (aq) + 8H(aq) + SeMn² (aq) + 4H₂O(1)-2.87-0.40MnO₂ (aq) + 2H₂O(l) + 3eMnO₂(s) + 4 OH(aq)HNO₂(aq) + H(aq) + e NO(g) + H₂O(l)+1.61 N₂(g) + 4H₂O(1) + 4e4OH(aq) + N₂H₂(aq)+1.36 N₂(g) + 5H(aq) + 4e N₂H₂ (aq)NO(g) + 2H₂O(1)+1.63 NO₂ (aq) + 4H(aq) + 3e+0.89 Na (aq) + e- Na(s)+1.47-0.28Ni²+ (aq) + 2e → Ni(s)O₂(g) + 4H(aq) + 4e-2 H₂O(1)4 OH(aq)H₂O₂(aq)O₂(g) + H₂O(1)PbSO4(s) + 2 H₂O(1)+0.34+0.15 PIC12(aq) + 2e+0.52 S(s) + 2H(aq) + 2ePbSO4(s) + H(aq) + 2e Pb(s) + HSO₂ (aq)Pt(s) + 4 Cl(aq)H₂S(g)-0.19 H₂SO₂(aq) + 4H*(aq) + 4e¯S(s) + 3H₂O(1)H₂SO3(aq) + H₂O(1)+2.87 HSO (aq) + 3 H*(aq) + 2e-0.44 Sn²(aq) + 2e-Sn(s)+0.77 Sn (aq) + 2eSn²+ (aq)+0.36 VO₂ (aq) + 2H(aq) + e- VO²+ (aq) + H₂O(1)0.00 Zn²(aq) + 2e-Zn(s)E°(V)-0.83+0.88+1.78+0.79+0.92+0.85+0.54+1.20-2.92-3.05-2.37-1.18+1.23+1.51+0.59+1.00-1.16-0.23+0.96-2.71-0.28+1.23+0.40+0.68+2.07-0.13+1.69-0.36+0.73+0.14+0.45+0.17-0.14+0.15+1.00-0.76

For the multiple subparts, I can solve only first three questions.

Heart pacemakers are often powered by lithium-silver chromate "button" batteries. The overall cell reaction is: 2 Li(s) + Ag:CrO4(s)→ Li:CrO4(s) + 2 Ag(s) (a) Lithium metal is the reactant at one of the electrodes of the battery. Is it the anode or the cathode? (b) Choose the two half-reactions from a table of standard reduction potentials that most closely approximate the reaction that occur within the battery. What is the standard voltage generated by a cell operating with these half-reactions? (c) The actual value is about +3.5 V for this pacemaker cell. How does that compare to what you've shown me in (b)? (d) Calculate the voltage at body temperature. Standard reduction potentials are as below: Half-Reaction Ag" (aq) + Ag(s) Age(s) +eAg(s) + Br"(aq) AgCl(s) + Ag(s) + C(aq) Ag(s) + 2S₂O3(aq) Ag(CN)₂ (aq) +eAg(s) + 2CN(a) Ag-Cro(s) + 2e2 Ag(s) + CO2(aq) Agl(s) + Ag(s) + (aq) Ag(S₂0₂):¹(aq) + Al³+ (aq) + 3e-Al(s) H₂AsO₂(aq) + 2H*(aq) + 2€˜ — H₂AsO₂(aq) + H₂O(1) +0.56 K*(aq) + e-K(s) Ba(aq) + 2 Ba(1) -2.90 L(a)+(s) BIO (aq) + 2H(aq) + 3e Bi(s) + H₂O(1) Bry() +2e-2 Be (aq) 2 BeO, (aq) + 12H(aq) + 10e Bry(1) + 6H₂O(1) 2CO(g) + 2H(aq) + 2eH₂C₂O₂(aq) Ca(aq) + 2 Ca(s) Cd²(aq) + 2e-Cd(s) Ce(a) + Ce(a) C(s) +2e2C1(a) 2HC10(aq) + 2H(aq) + 2eCl₂() + 2H₂O(1) CIO(a) + H₂O(1) +2e Cr(aq) + 2OH(aq) 2C10, (aq) + 12H(aq) + 10e — Cl₂(g) + 6H₂O(1) Co² (aq) + 2e Co(s) con lai) từ cong) Cr³(aq) + 3e Cr(s) Cr³(aq) + Cr²(aq) CryOy (aq) +14 11" (ap) + 6e2Cr¹(ay)+7H₂O() CrO2(aq) + 4H₂O(l) + 3e"→→→ Cu(aq) + 2e Cu²(aq) + Cu(s) Cu(a) Ca(OH),(s) + SOH(aq) E(V) Half-Reaction +0.80 2H₂O(1) + 2H₂) + 2OH(a) +0.10 HO₂ (aq) + H₂O() +2e3OH(aq) +0.22 H₂O₂(aq) + 2H(aq) + 2e2H₂O(n) -0.31 Hg(aq) + 2e-2Hg(1) +0.45 2Hg(aq) + 2Hg(a) -0.15 +0.01 g (a)+2eHg(1) )+2e-21(a) -1.66 210,(a)+ 12 H(aq) + 10e(s) + 6H₂O(1) Cu (aq) + Cul(s) + Cu(s) Cu()+1(a) Ft) +22F" (ay) Fe²(aq) + 2e Fe(s) Fe²(a) Fe (aq) + Fe(CN)(aq) + e-Fe(CN)(aq) 2H(aq) + 2H₂() +0.32 Mg(aq) +2e-Mg(s) +1.07 Mn(aq) + 2e-Mn(s) +1.52 MnOy(s) + 4H(aq) + 2e-Mn²(aq) + 2H₂O(1) -0.49 -2.87 MnO, "(aq) + 8H(aq) + Se Mn² (aq) + 4H₂O() MnO₂ (aq) + 2H₂O()+3e-MnO(s) + 4OH(aq) -0.40 HNO(aq) + H²(aq) + NO(g) + H₂O(l) +1.61 N) + 4H₂O(+4e4OH(aq) + N₂H₂(aq) +1.36 N) +SH(aq) + 4e²N₂H₂(aq) +1.63 NO, "(aq) + 4H(aq) + 3e NO(g) + 2H₂O(1) +0.89 Na(aq) + Na(s) +1.47 N²(a)+2e-Ni(s) -0.28 0(g) + 4H(aq) + 4e2H11₂0(1) +1.84 0(g) + 2H₂O()+4e4OH(aq) -0.74 0(g) + 2H(aq) + 2H₂O₂(aq) -0.41 0(g) + 2H(aq) + 2e O₂(g) + H₂O(1) +1.33 Pb² (aq) + 2e Pb(s) -0.13 Pb0,(s) + HSO,(aq) + 3H(aq) + 2e² PbSO,(s) + 2H₂O(1) +0.34 PbSO,(s) + H²(aq) + 2e Pb(s) + HSO₂ (aq) +0.15 PIC12(aq) + 2e Pt(s) + 4C(aq) +0.52 S(s) + 2H(aq) + 2H₂(g) -0.19 H₂SO,(aq) + 4H(aq) + 4e +2.87 HSO₂(aq) + 3H²(aq) + 2 -0.44 Sn²(aq) + 2e Sn(s) +0.77 Sn (aq) + 2e-S²(aq) +0.36 VO₂(aq) + 2H(aq) + e-VO² (aq) + H₂O(1) 0.00 Zn(aq) + 2² Zn(s) S(s) + 3H₂O(1) H₂SO₂(aq) + H₂O(1) E"(V) -0.83 +0.88 +1.78 +0.79 +0.92 +0.85 +0.54 +1.20 -2.92 -3.05 -2.37 -1.18 +1.23 +1.51 +0.59 +1.00 -1.16 -0.23 +0.96 -2.71 -0.28 +1.23 +0.40 +0.68 +2.07 -0.13 +1.69 -0.36 +0.73 +0.14 +0.45 +0.17 -0.14 +0.15 +1.00 -0.76