(7.11) A voltaic cell is constructed that usesthe following reaction and operates at 298K:Zn(s)+ Cd+2,Cd*2(aq) ®+ (S)uZZn*2(aq) + Cd(s)a) What is the emf of the cell understandard conditions?Zn*2 (ag)+ 2e¯ ® Zn(s)E°cell = -0.76Vcd*2 (aq)+ 2e¯ ® Cd(s)E°cell =-0.40 VAnswer: The emf of the cell isV.Refer to the Table of Standard ReductionPotential below to solve Question (a).STANDARD REDUCTION POTENTIAL AT 25 °cE() Hall Reaction+0.N0 2 H,O) + ze Hg) + 2OH (a)Hal-ReactionHall-ReactionE(V)Ag"(ng) +e- Ag(s)--0.83Aglir(s) +e- Ag(s) + Br (ag)AgCKs) +e- Ag(s) + a"(a)Ag(CN), "(a) +e Ag(s)+ 2CN (a)Ag:Cro(s) + 2e 2 Ag(s) + Cro (ag)+0.10 HO, (a) + H,O) + 2e 3OH (ay)+0.22 H,O(ng) + 2H"(ag) + 2e 2 H;O()-0.31 Hg/ (a) + 2e 2 Hg()+0.45 2g"(ay) + 2e 1Hg (a)-0.15 Hg" (a) + 2e - Hg()+0.01 s) + 2e 21(a)+1.78+0.79+0.92Agl(s) +e- Ag(s) +I(ay)+0.85Ag(S0,) (ay) +e Ag(s) + 2 S,0 (ap)+0.54A (ay) + 3e Al(s)HAso,(a) + 2H'(ay) + 2e - HAsOdany) + HO()Ba"(ag) + 2e - Ba(s)BIO (a) + 21'(ag) + 3eBr) + 2e - 2 Br (ap)2 Bro, (ag) + 12H"(ay) + 10 e Be() + 6H0)2Co,(2) + 2H"(ag) + 2e HC;0,(ag)Ca"(ay) + 2e Ca(s)-1.66 2 10, (ng) + 12H(a) + 10e ) + 6H0()+0.56 K'(ag) + K(s)--2.0 (ag)e+1.20-2.92Lu"(ag) - LI()+0.32 Mg"(ny) + 2e Mg(s)+1.07 Mn (a) + 2e - Mn(s)-3.05Bs) + HO()-2.37-118+1.52 MnO4) +4H'(ag) + 2e Mn" (ay)+ 21,O)-0.49 Mno, (a) + BH"(a) + Se Mn" (a) + 4HO(-2.87 Mno, "(a) + 211,0() +3e MnO(s) + 4 OH (a) +0.59--0.40 HNO(ay) + H'(ay) +e NO(g) + HOI)+1.61 N8) + 4 H,0() + 4e 4OH (a) + NgH,(ag)+1.36 N(g) + SH'(a) +de NH,' (ag)+1.63 NO, (ag) + 4H'(ny)+ 3e- NO) + 2H,O()+1.23+1.S1Ca"(a) + 2 e Cd(s)Cet"(ay) +e- Ce"(a)Cl) + 2e 2 cr (ay)2 HCIO(a) + 2H'(ap)+ 2e- Clg) + 2H,0()CIO (ag) + HO) + 2e cr (ag) + 20H (ag)2 CIO, (ag) + 12H"(ag) + 10oe - CI) + 6H,O)+1.00-1.16-0.23+0.96+0.89 Na'(ag) +e Na(s)-2.71+1.47 NI (ag) + 2e - NI()-0.28 o,) + 4H"(ay) + de -21,0()+1.84 Oz) + 2 HO) + 4e- 4 OH (ag)-0.74 o,) + 2H(ay) + 2e- HO,(ng)-0.28Co" (ag) + 2e Co(s)+1.23Co"(ay) +e Co"(ny)+0.40Cr" (a) + 3e Cr(s)+0.68Cr"(a) +e- Cr"(a)C0 (ay) + 14H(ay) + 6e- 2C" (ng) + 7H,O) +1.33 Pb" (ap) + 2e Pb()Cro (ay) + 4H,O() + 3e-0.41 o,e) + 2H"(ag) + 2e O(e) + H0(1)+2.07-0.13-0.13 PbO(s) + HSo (a) + 3H (ag) + 2e+1.69Cr(OH)(s) + S OH (a)I'hso) + 2 H,0()+0.34 Ptso,(s) + H"(ag) + 2e - Ib(s) + HSO, (mp)+0.15 PCI (ag) + 2e- P(s) + 4Cr(a)+0.52 s(s) + 2H"(ap) + 2e H;SK)-0.19 HSO,(ag) + 4H(ag) + 4e- S() + 3H,0(r)+2.87 HSO, (ag) + 3H"(a) + 2e - H,SO(ag) + H,O()-0.44 Sn(ag)+ 2e- Sn(s)+0.77 Sn (ng)+ 2e- Sn" (ap)-0.36Cu"(a) + 2e Cu(s)Cu" (ag) + e Cu'(ay)+0,73+0.14Cu'(ay) +e - Cu(s)Cul(s) + e - Culs) + '(ag)Fle) + 2e - 2F(a)Fe" (ay) + 2e Fes)Fe" (a) +e- Fe" (ag)+0.45+0.17-0.14+0.15+0.36 vo, (a) + 21() + e vo" (a) + HO(1)0.00 Zn"(ay) + 2e- Zn(s)Fe(CN). (a) + e- Fe(CN) (ag)+1.002H (ag) + 2e Hs)-0.76

Please find your solution below : EMF (electromotive force) is defined as the highest potential…

(7.11) A voltaic cell is constructed that uses the following reaction and operates at 298 K: Zn(s) + Cd*2(aq) ® Zn*2(aq) + Cd(s) a) What is the emf of the cell under standard conditions? Zn*2(aq) + 2e¯ ® Zn(s) E°cell = -0.76 V Cd*2(aq) + 2e¯ ® Cd(s) Cd(s) E° ´cell = -0.40 V Answer: The emf of the cell is V.

(7.11) A voltaic cell is constructed that uses the following reaction and operates at 298 K: Zn(s) + Cd2(aq) ® Zn2(aq) + Cd(s) a) What is the emf of the cell under standard conditions? Zn2(aq) + 2e¯ ® Zn(s) E°cell = -0.76 V Cd2(aq) + 2e¯ ® Cd(s) Cd(s) E° ´cell = -0.40 V Answer: The emf of the cell is V.

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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