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A galvanic cell is powered by the following redox reaction: 2+ 2 MnO4(aq) + 4 H,O(1) + 3 Zn(s) 2 MnO2(s) + 8 OH (aq) + 3 Zn“(aq) Answer the following questions about this cell. If you need any electrochemical data, be sure you get it from the ALEKS Data tab.

A galvanic cell is powered by the following redox reaction: 2+ 2 MnO4(aq) + 4 H,O(1) + 3 Zn(s) 2 MnO2(s) + 8 OH (aq) + 3 Zn“(aq) Answer the following questions about this cell. If you need any electrochemical data, be sure you get it from the ALEKS Data tab.

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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A galvanic cell is powered by the following redox reaction: 2+ 2 Mno,(aq) + 4 H,0(1) + 3 Zn(s) → 2 MnO,(s) + 8 OH (aq) + 3 Zn“"(aq) Answer the following questions about this cell. If you need any electrochemical data, be sure you get it from the ALEKS Data tab. Write a balanced equation for the half-reaction that takes place at the cathode. Write a balanced equation for the half-reaction that takes place at the anode. Calculate the cell voltage under standard conditions. E° = [v Round your answer to 2 decimal places.
Transcribed Image Text:A galvanic cell is powered by the following redox reaction: 2+ 2 Mno,(aq) + 4 H,0(1) + 3 Zn(s) → 2 MnO,(s) + 8 OH (aq) + 3 Zn“"(aq) Answer the following questions about this cell. If you need any electrochemical data, be sure you get it from the ALEKS Data tab. Write a balanced equation for the half-reaction that takes place at the cathode. Write a balanced equation for the half-reaction that takes place at the anode. Calculate the cell voltage under standard conditions. E° = [v Round your answer to 2 decimal places.
Half-Reaction E° (V) 2H* (aq) + 2e¯ - H2 (9) 0.000 Ag* (aq) + e¯ → Ag (s) 0.7996 2H20 (I) + 2e¯ - H2 (g) + 20OH" (aq) -0.8277 AI3+ (aq) + 3e¯ → Al (s) -1.676 H2O2 (aq) + 2H* (aq) + 2e¯ → 2H20 (1I) 1.776 Au+ (aq) + e¯→ Au (s) 1.692 I2 (s) + 2e¯ → 21¯ (aq) 0.5355 Au3+ (aq) + 3e¯ → Au (s) 1.498 2103- (aq) + 12H* (aq) + 10e¯ → I2 (s) + 6H2O (1) Mg2+ (aq) + 2e - Mg (s) 1.195 Ba2+ (aq) + 2e¯ → Ba (s) -2.912 -2.372 Br2 (1) + 2e¯ → 2B1¯ (aq) 1.066 Mn2+ (aq) + 2e" → Mn (s) -1.185 Ca2+ (aq) + 2e¯ → Ca (s) -2.868 Mno2 (s) + 4H+ (aq) + 2e¯ → Mn2+ (aq) + 2H20 (1) 1.224 Cl2 (g) + 2e¯ → 2C1- (aq) 1.35827 Mno4- (aq) + 8H* (aq) + 5e¯ → Mn2+ (aq) + 4H2O (1) 1.507 Co2+ (aq) + 2e¯ → Co (s) -0.28 Mnog- (aq) + 2H20 (I) + 3e¯ → MnO2 (s) + 40H¯ (aq) 0.595 Co3+ (aq) + e¯ → Co2+ (aq) 1.92 HNO2 (aq) + H+ (aq) + e¯ → NO (g) + H2O (I) 0.983 Cr2+ (aq) + 2e¯ → Cr (s) -0.913 N2 (g) + 4H2O (1) + 4e¯ → 40H" (aq) + N2H4 (aq) -1.16 Cr3+ (aq) + 3e¯ → Cr (s) -0.744 NO3- (aq) + 4H* (aq) + 3e¯ → NO (g) + 2H2O (1) 0.957 Cr3+ (aq) + e¯ → Cr2+ (aq) -0.407 Na* (aq) + e¯ → Na (s) -2.71 Cro42- (aq) + 4H20 (I) + 3e¯ → Cr(OH)3 (s) + 50H¯ (aq) -0.13 Ni2+ (aq) + 2e" → Ni (s) -0.257 Cu2+ (aq) + 2e¯ → Cu (s) 0.3419 02 (g) + 4H* (aq) + 4e¯ → 2H20 (1) 1.229 Cu2+ (aq) + e- → Cu+ (aq) 0.153 02 (g) + 2H20 (1) + 4e¯ → 40H" (aq) 0.401 Cu* (aq) + e¯ → Cu (s) 0.521 02 (g) + 2H† (aq) + 2e¯ → H2O2 (aq) Pb2+ (aq) + 2e¯ → Pb (s) 0.695 F2 (g) + 2e¯ → 2F¯ (aq) 2.866 -0.1262 Fe2+ (aq) + 2e¯ → Fe (s) -0.447 PBSO4 (s) + H+ (aq) + 2e¯ → Pb (s) + HSO4¯ (aq) -0.3588 Fe3+ (aq) + e- → Fe2+ (aq) Fe3+ (aq) + 3e¯ → Fe (s) 0.771 HSO4 (aq) + 3H+ (aq) + 2e¯ → H2SO3 (aq) + H2O (1) 0.172 -0.037 Sc3+ (aq) + 3e - Sc (s) -2.077 Sn2+ (aq) + 2e¯ – Sn (s) -0.1375 Sn4+ (aq) + 2e¯ → Sn2+ (aq) 0.151 VO2+ (aq) + 2H+ (aq) + e¯ → vo2+ (aq) + H20 (I) 0.991 Zn2+ (aq) + 2e¯ → Zn (s) -0.7618
Transcribed Image Text:Half-Reaction E° (V) 2H* (aq) + 2e¯ - H2 (9) 0.000 Ag* (aq) + e¯ → Ag (s) 0.7996 2H20 (I) + 2e¯ - H2 (g) + 20OH" (aq) -0.8277 AI3+ (aq) + 3e¯ → Al (s) -1.676 H2O2 (aq) + 2H* (aq) + 2e¯ → 2H20 (1I) 1.776 Au+ (aq) + e¯→ Au (s) 1.692 I2 (s) + 2e¯ → 21¯ (aq) 0.5355 Au3+ (aq) + 3e¯ → Au (s) 1.498 2103- (aq) + 12H* (aq) + 10e¯ → I2 (s) + 6H2O (1) Mg2+ (aq) + 2e - Mg (s) 1.195 Ba2+ (aq) + 2e¯ → Ba (s) -2.912 -2.372 Br2 (1) + 2e¯ → 2B1¯ (aq) 1.066 Mn2+ (aq) + 2e" → Mn (s) -1.185 Ca2+ (aq) + 2e¯ → Ca (s) -2.868 Mno2 (s) + 4H+ (aq) + 2e¯ → Mn2+ (aq) + 2H20 (1) 1.224 Cl2 (g) + 2e¯ → 2C1- (aq) 1.35827 Mno4- (aq) + 8H* (aq) + 5e¯ → Mn2+ (aq) + 4H2O (1) 1.507 Co2+ (aq) + 2e¯ → Co (s) -0.28 Mnog- (aq) + 2H20 (I) + 3e¯ → MnO2 (s) + 40H¯ (aq) 0.595 Co3+ (aq) + e¯ → Co2+ (aq) 1.92 HNO2 (aq) + H+ (aq) + e¯ → NO (g) + H2O (I) 0.983 Cr2+ (aq) + 2e¯ → Cr (s) -0.913 N2 (g) + 4H2O (1) + 4e¯ → 40H" (aq) + N2H4 (aq) -1.16 Cr3+ (aq) + 3e¯ → Cr (s) -0.744 NO3- (aq) + 4H* (aq) + 3e¯ → NO (g) + 2H2O (1) 0.957 Cr3+ (aq) + e¯ → Cr2+ (aq) -0.407 Na* (aq) + e¯ → Na (s) -2.71 Cro42- (aq) + 4H20 (I) + 3e¯ → Cr(OH)3 (s) + 50H¯ (aq) -0.13 Ni2+ (aq) + 2e" → Ni (s) -0.257 Cu2+ (aq) + 2e¯ → Cu (s) 0.3419 02 (g) + 4H* (aq) + 4e¯ → 2H20 (1) 1.229 Cu2+ (aq) + e- → Cu+ (aq) 0.153 02 (g) + 2H20 (1) + 4e¯ → 40H" (aq) 0.401 Cu* (aq) + e¯ → Cu (s) 0.521 02 (g) + 2H† (aq) + 2e¯ → H2O2 (aq) Pb2+ (aq) + 2e¯ → Pb (s) 0.695 F2 (g) + 2e¯ → 2F¯ (aq) 2.866 -0.1262 Fe2+ (aq) + 2e¯ → Fe (s) -0.447 PBSO4 (s) + H+ (aq) + 2e¯ → Pb (s) + HSO4¯ (aq) -0.3588 Fe3+ (aq) + e- → Fe2+ (aq) Fe3+ (aq) + 3e¯ → Fe (s) 0.771 HSO4 (aq) + 3H+ (aq) + 2e¯ → H2SO3 (aq) + H2O (1) 0.172 -0.037 Sc3+ (aq) + 3e - Sc (s) -2.077 Sn2+ (aq) + 2e¯ – Sn (s) -0.1375 Sn4+ (aq) + 2e¯ → Sn2+ (aq) 0.151 VO2+ (aq) + 2H+ (aq) + e¯ → vo2+ (aq) + H20 (I) 0.991 Zn2+ (aq) + 2e¯ → Zn (s) -0.7618
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