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Hg, 2+ (ag) + 2e 2Hg(1) 0.80 Ag* (ag) +e Ag(s) 0.80 Hg²+ (ag) + 2e - Hg(1) 0.85 CIO (ag) + H20(1) + 2e Cl (ag) + 20H (ag) 0.90 2H3²+ (aq) + 2e Hg,2+ (aq) 0.90 NO3 (ag) + 4H* (ag) + 3e NO(g) + 2H2 O(1) 0.96 Br2 (1) + 2e 2Br (ag) 1.07 O2 (9) + 4H* (ag) + 4e - 2H20(1) 1.23 Cr2 0,2 (ag) + 14H* (ag) + 6e 2Cr+ (ag) + 7H2O(1) 1.33 Cl2 (9) + 2e 2C1 (ag) 1.36 MnO4- (ag) + 8H (ag) + 5e Mn2+ (ag) + 4H2 O(1) 1.49 H2O2 (aq) + 2H* (ag) + 2e - 2H2O(1) 1.78 S,0g (ag) + 2e 250,2 (ag) 2.01 F2(9) + 2e 2F (ag) 2.87 Standard free-energy change kJ

Hg, 2+ (ag) + 2e 2Hg(1) 0.80 Ag* (ag) +e Ag(s) 0.80 Hg²+ (ag) + 2e - Hg(1) 0.85 CIO (ag) + H20(1) + 2e Cl (ag) + 20H (ag) 0.90 2H3²+ (aq) + 2e Hg,2+ (aq) 0.90 NO3 (ag) + 4H* (ag) + 3e NO(g) + 2H2 O(1) 0.96 Br2 (1) + 2e 2Br (ag) 1.07 O2 (9) + 4H* (ag) + 4e - 2H20(1) 1.23 Cr2 0,2 (ag) + 14H* (ag) + 6e 2Cr+ (ag) + 7H2O(1) 1.33 Cl2 (9) + 2e 2C1 (ag) 1.36 MnO4- (ag) + 8H (ag) + 5e Mn2+ (ag) + 4H2 O(1) 1.49 H2O2 (aq) + 2H* (ag) + 2e - 2H2O(1) 1.78 S,0g (ag) + 2e 250,2 (ag) 2.01 F2(9) + 2e 2F (ag) 2.87 Standard free-energy change kJ

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
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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Calculate the standard free-energy change at 25°C for the following reaction: 2Zn(s) + O2 (9) + 4H* (aq) 2Zn2+ (ag) + 2H2 O(1) Use standard electrode potentials. Standard Electrode (Reduction) Potentials in Aqueous Solution at 25°C Standard Cathode (Reduction) Half-Reaction Potential, E (V) Lit (ag) + e = Li(s) -3.04 Na+ (aq) + e Na(s) -2.71 Mg+ (ag) + 2e -Mg(s) Al+ (ag) + 3e Al(s) -2.38 -1.66 2H2 O(1) + 2e H2 (9) + 20H (ag) -0.83 Zn2+ (aq) + 2e = Zn(s) -0.76 Cr+ (ag) + 3e - Cr(s) -0.74 Fe2+ (aq) + 2e Fe(s) -0.41 Cd2+ (ag) + 2e - Cd(s) -0.40 Ni?+ (ag) + 2e Ni(s) -0.23 Sn2+ (ag) + 2e Sn(s) -0.14 Pb2+ (ag) + 2e Pb(s) -0.13 Fet (ag) + 3e Fe(s) -0.04 2H* (ag) + 2e- H2 (g) 0.00 Sn+ (ag) + 2e- Sn+ (aq) 0.15 Cu+ (ag) + e Cu* (aq) 0.16 Cu+ (ag) + 2e - Cu(s) I0 (ag) + H20(1) + 2e-I (ag) + 20H (ag) 0.34 0.49 Cu* (ag) +e Cu(s) 0.52 L (s) + 2e 21 (ag) 0.54 Fe* (ag) + e Fe?+ (aq) 0.77
Transcribed Image Text:Calculate the standard free-energy change at 25°C for the following reaction: 2Zn(s) + O2 (9) + 4H* (aq) 2Zn2+ (ag) + 2H2 O(1) Use standard electrode potentials. Standard Electrode (Reduction) Potentials in Aqueous Solution at 25°C Standard Cathode (Reduction) Half-Reaction Potential, E (V) Lit (ag) + e = Li(s) -3.04 Na+ (aq) + e Na(s) -2.71 Mg+ (ag) + 2e -Mg(s) Al+ (ag) + 3e Al(s) -2.38 -1.66 2H2 O(1) + 2e H2 (9) + 20H (ag) -0.83 Zn2+ (aq) + 2e = Zn(s) -0.76 Cr+ (ag) + 3e - Cr(s) -0.74 Fe2+ (aq) + 2e Fe(s) -0.41 Cd2+ (ag) + 2e - Cd(s) -0.40 Ni?+ (ag) + 2e Ni(s) -0.23 Sn2+ (ag) + 2e Sn(s) -0.14 Pb2+ (ag) + 2e Pb(s) -0.13 Fet (ag) + 3e Fe(s) -0.04 2H* (ag) + 2e- H2 (g) 0.00 Sn+ (ag) + 2e- Sn+ (aq) 0.15 Cu+ (ag) + e Cu* (aq) 0.16 Cu+ (ag) + 2e - Cu(s) I0 (ag) + H20(1) + 2e-I (ag) + 20H (ag) 0.34 0.49 Cu* (ag) +e Cu(s) 0.52 L (s) + 2e 21 (ag) 0.54 Fe* (ag) + e Fe?+ (aq) 0.77
Hg2 2+ (ag) + 2e 2Hg(1) 0.80 Ag* (ag) +e + Ag(s) 0.80 Hg+ (ag) + 2e Hg(1) 0.85 CIO (ag) + H20(1) + 2e = CI (ag) + 20H (ag) 0.90 2H3²+ (ag) + 2e - Hg,2+ (ag) 0.90 NO, (ag) + 4H+(ag) + 3e = NO(g) + 2H2O(1) 0.96 Br2 (1) + 2e 2Br (ag) 1.07 O2 (9) + 4H* (ag) + 4e - 2H20(1) 1.23 Cr2 0,2 (ag) + 14H* (ag) + 6e - 2Cr+ (ag) + 7H2O(1) 1.33 Cl2 (9) + 2e 2C1 (ag) 1.36 MnO4- (ag) + 8H+ (ag) + 5e Mn²+ (aq) + 4H2 O(1) 1.49 H,O2 (aq) + 2H+ (ag) + 2e = 2H20(1) 1.78 S203 (ag) + 2e 2S0,2 (ag) 2.01 F2 (9) + 2e 2F (ag) 2.87 Standard free-energy change kJ %3D
Transcribed Image Text:Hg2 2+ (ag) + 2e 2Hg(1) 0.80 Ag* (ag) +e + Ag(s) 0.80 Hg+ (ag) + 2e Hg(1) 0.85 CIO (ag) + H20(1) + 2e = CI (ag) + 20H (ag) 0.90 2H3²+ (ag) + 2e - Hg,2+ (ag) 0.90 NO, (ag) + 4H+(ag) + 3e = NO(g) + 2H2O(1) 0.96 Br2 (1) + 2e 2Br (ag) 1.07 O2 (9) + 4H* (ag) + 4e - 2H20(1) 1.23 Cr2 0,2 (ag) + 14H* (ag) + 6e - 2Cr+ (ag) + 7H2O(1) 1.33 Cl2 (9) + 2e 2C1 (ag) 1.36 MnO4- (ag) + 8H+ (ag) + 5e Mn²+ (aq) + 4H2 O(1) 1.49 H,O2 (aq) + 2H+ (ag) + 2e = 2H20(1) 1.78 S203 (ag) + 2e 2S0,2 (ag) 2.01 F2 (9) + 2e 2F (ag) 2.87 Standard free-energy change kJ %3D
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