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The table lists common half-reactions along with the standard reduction potential associated with each half-reaction. These standard reduction potentials are all relative to some standard. What is the standard (zero point)? If is positive for a half-reaction, what does it mean? If is negative for a half-reaction, what does it mean? Which species in table is mos

The table lists common half-reactions along with the standard reduction potential associated with each half-reaction. These standard reduction potentials are all relative to some standard. What is the standard (zero point)? If is positive for a half-reaction, what does it mean? If is negative for a half-reaction, what does it mean? Which species in table is mos

Chemistry
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
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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The table lists common half-reactions along with the standard reduction potential associated with each half-reaction. These standard reduction potentials are all relative to some standard.


  • What is the standard (zero point)?
    If is positive for a half-reaction, what does it mean?
    If is negative for a half-reaction, what does it mean?
    Which species in table is most easily reduced? Least easily reduced?
    If the reverse of the half-reactions in the table are the oxidation half-reactions, how are standard oxidation potentials determined
TABLE 17.1 Standard Reduction Potentials at 25°C (298 K) for Many Common Half-Reactions Half-Reaction E* (V) g° (V) Half-Reaction F; + 2e + 2F Ag* +e + Ag" Co +e + Co HO, + 2H + 2e" Ce*" + e → Ce" O, + 2H,0 + 4e 40H Cu* + 2e - Cu Hg Cl; + 2e - 2Hg + 20 AgCl +e + Ag + C so + 4H' + 2e" + H,SO, + H,0 Cu* + e Cu" 2.87 0.40 1.99 0.34 1.82 1.78 0.27 • 2H,0 0.22 1.70 0.20 PBO, + 4H* + So,- + 2e → PhSO, + 2H0 MnO, + 4H" + 3e → MnO, + 2H,0 2e + 2H* + 10, 10, + H,0 MnO, + 8H* + 5e + Mn* + 4H,0 Au+ + 3e Au PbO, + 4H* + 2e + Pb* + 2H0 C, + 2e 2CI Cr,0, + 14H + 6e¯ → 2Cr" + 7H;O O, + 4H" + 4e 2H,0 MnO, + 4H* + 2e → Mn* + 2H,0 10, + 6H" + 5e - Br, + 2e 2Br VO," + 2H + e Vo + H,O AuCl, + 3e → Au + 4CI NO, + 4H* + 3e → NO + 2H,0 C1O, +e → CIO, 2Hg** + 2e - Ag +e Ag Hg,* + 2e → 2Hg Fe* + e → Fe+ O, + 2H* + 2e H,O, MnO, +e - MnO, Iz + 2e 21 Cu" +e → Cu 1.69 0.16 2H* + 2e Hz Fe* + 3e- Fe Pb* + 2e Sn* + 2e - Sn Ni** + 2e Ni PhSO, + 2e - Pb + So Cd** + 2e Cd Fe* + 2e -→ Fe Cr* +e" Cr* Cr* + 3e Cr Zn + 2e Zn 2H,0 + 2e → Hạ + 20H Mn** + 2e - Mn Al" + 3e Al H2 + 2e 2H Mg* + 2e - Mg La + 3e La 1.68 0.00 1.60 -0.036 1.51 - Pb -0.13 1.50 -0.14 1.46 -0.23 1.36 -0.35 1.33 -0.40 1.23 -0.44 1.21 -0.50 → Įl; + 3H¿0 1.20 -0.73 1.09 -0.76 1.00 -0.83 0.99 -1.18 0.96 -1.66 0.954 -2.23 0.91 -2.37 0.80 -2.37 0.80 Na* +e + Na -2.71 Ca + 2e Ca Ba* + 2e → Ba K* +e + K Li" +e + Li 0.77 -2.76 0.68 -2.90 0.56 -2.92 0.54 -3.05 0.52
Transcribed Image Text:TABLE 17.1 Standard Reduction Potentials at 25°C (298 K) for Many Common Half-Reactions Half-Reaction E* (V) g° (V) Half-Reaction F; + 2e + 2F Ag* +e + Ag" Co +e + Co HO, + 2H + 2e" Ce*" + e → Ce" O, + 2H,0 + 4e 40H Cu* + 2e - Cu Hg Cl; + 2e - 2Hg + 20 AgCl +e + Ag + C so + 4H' + 2e" + H,SO, + H,0 Cu* + e Cu" 2.87 0.40 1.99 0.34 1.82 1.78 0.27 • 2H,0 0.22 1.70 0.20 PBO, + 4H* + So,- + 2e → PhSO, + 2H0 MnO, + 4H" + 3e → MnO, + 2H,0 2e + 2H* + 10, 10, + H,0 MnO, + 8H* + 5e + Mn* + 4H,0 Au+ + 3e Au PbO, + 4H* + 2e + Pb* + 2H0 C, + 2e 2CI Cr,0, + 14H + 6e¯ → 2Cr" + 7H;O O, + 4H" + 4e 2H,0 MnO, + 4H* + 2e → Mn* + 2H,0 10, + 6H" + 5e - Br, + 2e 2Br VO," + 2H + e Vo + H,O AuCl, + 3e → Au + 4CI NO, + 4H* + 3e → NO + 2H,0 C1O, +e → CIO, 2Hg** + 2e - Ag +e Ag Hg,* + 2e → 2Hg Fe* + e → Fe+ O, + 2H* + 2e H,O, MnO, +e - MnO, Iz + 2e 21 Cu" +e → Cu 1.69 0.16 2H* + 2e Hz Fe* + 3e- Fe Pb* + 2e Sn* + 2e - Sn Ni** + 2e Ni PhSO, + 2e - Pb + So Cd** + 2e Cd Fe* + 2e -→ Fe Cr* +e" Cr* Cr* + 3e Cr Zn + 2e Zn 2H,0 + 2e → Hạ + 20H Mn** + 2e - Mn Al" + 3e Al H2 + 2e 2H Mg* + 2e - Mg La + 3e La 1.68 0.00 1.60 -0.036 1.51 - Pb -0.13 1.50 -0.14 1.46 -0.23 1.36 -0.35 1.33 -0.40 1.23 -0.44 1.21 -0.50 → Įl; + 3H¿0 1.20 -0.73 1.09 -0.76 1.00 -0.83 0.99 -1.18 0.96 -1.66 0.954 -2.23 0.91 -2.37 0.80 -2.37 0.80 Na* +e + Na -2.71 Ca + 2e Ca Ba* + 2e → Ba K* +e + K Li" +e + Li 0.77 -2.76 0.68 -2.90 0.56 -2.92 0.54 -3.05 0.52
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