Calculate the cell potential for the following rea…


Question Description:

20.50

Calculate the cell potential for the following reaction as written at 73 degree C, given that [Cr2+]=0.759 M and [Sn2+]=0.0190 M. Standard reduction potentials can be found: Standard Reduction Potentials at 298 K Reduction Half-Reaction Standard Potential Ered° (V) F2(g) + 2e– → 2F–(aq) +2.87 O3(g) + 2H3O+(aq) + 2e– → O2(g) + 3H2O(l) +2.076 Co3+(aq) + e– → Co2+(aq) +1.92 H2O2(aq) + 2H3O+(aq) + 2e– → 2H2O(l) +1.776 N2O(g) + 2H3O+(aq) + 2e– → N2(g) + 3H2O(l) +1.766 Ce4+(aq) + e– → Ce3+(aq) +1.72 PbO2(s) + SO42–(aq) + 4H3O+(aq) + 2e– → PbSO4(s) + 6H2O(l) +1.6913 MnO4–(aq) + 4H3O+(aq) + 3e– → MnO2(s) + 6H2O(l) +1.679 NiO2(s) + 4H3O+(aq) + 2e– → Ni2+(aq) + 6H2O(l) +1.678 2HClO(aq) + 2H3O+(aq) + 2e– → Cl2(g) +2H2O(l) +1.611 H5IO6(s) + H3O+(aq) + 2e– → IO3–(aq) + 4H2O(l) +1.601 2NO(g) + 2H3O+(aq) + 2e– → N2O(g) + 3H2O(l) +1.591 MnO4–(aq) + 8H3O+(aq) + 5e– → Mn2+(aq) + 12H2O(l) +1.507 Au3+(aq) + 3e– → Au(s) +1.498 PbO2(s) + 4H3O+(aq)+ 2e– → Pb2+(aq) + 6H2O(l) +1.455 ClO3–(aq) + 6H3O+(aq) + 6e– → Cl–(aq) + 9H2O(l) +1.451 BrO3–(aq) + 6H3O+(aq) + 5e– → 1/2Br2(l) + 9H2O(l) +1.482 2ClO4–(aq) + 16H3O+(aq) + 14e– → Cl2(g) + 24H2O(l) +1.39 ClO4–(aq) + 8H3O+(aq) + 8e– → Cl–(aq) + 12H2O(l) +1.389 Cl2(g) + 2e– → 2Cl–(aq) +1.36 ClO4–(aq) + 6H3O+(aq) + 6e– → ClO–(aq) + 9H2O(l) +1.36 HBrO(aq) + H3O+(aq) + 2e– → Br– + 2H2O(l) +1.331 Cr2O72–(aq) + 14H3O+(aq) + 6e– → 2Cr3+(aq) + 21H2O(l) +1.232 O2(g) + 4H+(aq) + 4e– → 2H2O(l) +1.23 MnO2(s) + 4H3O+(aq) + 2e– → Mn2+(aq) + 6H2O(l) +1.224 2IO3–(aq) + 12H3O+(aq) + 10e– → I2(s) + 18H2O(l) +1.195 ClO4–(aq) + 2H3O+(aq) + 2e– → ClO3–(aq) + 3H2O(l) +1.189 Pt2+(aq) + 2e– → Pt(s) +1.18 Br2(aq) + 2e– → 2Br–(aq) +1.0873 Br2(l) + 2e– → 2Br–(aq) +1.07 NO2(g) + 2H3O+(aq) + 2e– → NO(g) + 3H2O(l) +1.03 NO3–(aq) + 4H3O+(aq) +3e– → NO(g) + 6H2O(l) +0.957 2Hg2+(aq) + 2e– → Hg22+(aq) +0.920 Hg2+(aq) + 2e– → Hg(l) +0.851 ClO–(aq) + H2O(l) + 2e– → Cl–(aq) + 2OH–(aq) +0.81 Ag+(aq) + e– → Ag(s) +0.80 Hg22+(aq) + 2e– → 2Hg(l) +0.7973 Fe3+(aq) + e– → Fe2+(aq) +0.771 Ni(OH)2(s) + 2e– → Ni(s) + 2OH–(aq) +0.72 p-benzoquinone + H3O+(aq) + 2e– → hydroquinone + H2O(l) +0.6992 O2(g) + 2H3O+(aq) + 2e– → H2O2(l) + 2H2O(l) +0.695 MnO4–(aq) + 2H2O(l) + 3e– → MnO2(s) + 4OH–(aq) +0.595 I2(s) + 2e– → 2I–(aq) +0.54 I3–(aq) + 2e– → 3I–(aq) +0.536 Cu+(aq) + e– → Cu(s) +0.52 O2(g) + 2H2O + 4e– → 4OH–(aq) +0.401 Fe(CN)63–(aq) + e– → Fe(CN)64–(aq) +0.358 Cu2+(aq) + 2e– → Cu(s) +0.34 Hg2Cl2(s) + 2e– → 2Hg(l) + 2Cl–(aq) +0.26808 HAsO2(s) + 3H3O+(aq) + 3e– → As(s) + 5H2O +0.248 AgCl(s) + e– → Ag(s) + Cl-(aq) +0.22233 Cu2+(aq) + e– → Cu+(aq) +0.153 Sn4+(aq) +2e– → Sn2+(aq) +0.151 S(s) + 2H3O+(aq) + 2e– → H2S(s) + 2H2O(l) +0.14 NO3–(aq) +2H2O(l) + 3e– → NO(g) + 4OH–(aq) +0.109 N2(g) + 8H3O+(aq) + 6e– → 2NH4+(aq) +8H2O(l) +0.092 S4O62–(aq) + 2e– → 2S3O32–(aq) +0.08 AgBr(s) + e– → Ag(s) + Br–(aq) +0.07133 2H+(aq) + 2e– → H2(g) 0.00 Fe3+(aq) + 3e– → Fe(s) -0.04 [Co(NH3)6]3+(aq) + e– → [Co(NH3)6]2+(aq) -0.108 Pb2+(aq) + 2e– → Pb(s) –0.13 Sn2+(aq) + 2e– → Sn(s) –0.14 O2(g) + 2H2O(l) + 2e– → H2O2(l) + 2OH–(aq) –0.146 AgI(s) + e– → Ag(s) + I– (aq) –0.15224 CO2(g) + 2H3O+(aq) + 2e– → HCO2H(s) + 2H2O(l) –0.199 Cu(OH)2(s) + 2e– → Cu(s) + 2OH–(aq) –0.222 Ni2+(aq) + 2e– → Ni(s) –0.26 Co2+(aq) + 2e– → Co(s) –0.28 PbSO4(s) + 2e– → Pb(s) + SO42–(aq) –0.3588 SeO32–(aq) + 3H2O(l) + 4e– → Se + 6OH–(aq) –0.366 Cd2+(aq) + 2e– → Cd(s) –0.403 Cr3+(aq) + e– → Cr2+(aq) –0.407 Fe2+(aq) + 2e– → Fe(s) –0.44 NO2–(g) + H2O(l) + 3e– → NO(g) + 2OH–(aq) –0.46 S(s) + 2e– → S2–(aq) –0.48 2CO2(g) + 2H3O+(aq) + 2e– → H2C2O4(s) + H2O(l) –0.49 TiO2(s) + 4H3O+ + 2e– → Ti2+(aq) + 6H2O(l) –0.502 Au(CN)2–(aq) + e– → Au(s) + 2CN–(aq) –0.60 Cr3+(aq) + 3e– → Cr(s) –0.74 Zn2+(aq) + 2e– → Zn(s) –0.76 Cd(OH)2(s) + 2e– → Cd(s) + 2OH–(aq) –0.809 2H2O(l) + 2e– → H2(g) + 2OH–(aq) –0.83 Ti3+(aq) + e– → Ti2+(aq) –0.85 H3BO3(s) + 3H3O+ + 3e– → B(s) + 6H2O(l) –0.8698 Cr2+(aq) + 2e– → Cr(s) –0.91 CNO–(aq) + H2O(l) + 2e– → CN–(aq) + 2OH–(aq) –0.970 [Zn(NH3)4]2+(aq) + 2e– → Zn(s) + 4NH3(aq) –1.04 Mn2+(aq) + 2e– → Mn(s) –1.185 Cr(OH)3(s) + 3e– → Cr(s) + 3OH–(aq) –1.48 Ti2+(aq) + 2e– → Ti(s) –1.630 Al3+(aq) + 3e– → Al(s) –1.66 Al(OH)3(s) + 3e– → Al(s)+3OH–(aq) –2.31 Mg2+(aq) + 2e– → Mg(s) –2.38 Mg(OH)2(s) + 2e– → Mg(s) + 2OH–(aq) –2.69 Na+(aq) + e– → Na(s) –2.71 Ca2+(aq) + 2e– → Ca(s) –2.87 Ba2+(aq) + 2e– → Ba(s) –2.912 K+(aq) + e– → K(s) –2.931 Ba(OH)2(s) + 2e– → Ba(s) + 2OH–(aq) –2.99 Ca(OH)2(s) + 2e– → Ca(s) + 2OH–(aq) –3.02 Cs+(aq) + e– → Cs(s) –3.026 Li+(aq) + e– → Li(s) –3.04

Answer

20.50