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A galvanic cell is powered by the following redox reaction: 3 Cu (aq) + Cr(OH);(s) + 5 OH (aq) → 3 Cu" (aq) + Cro (aq) + 4H,0(1) 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 = Ov Round your answer to 2 decimal places. Half-Reaction E (V) Fe* (aq) + e" - Fe2* (aq) 0.771 Ag* (aq) + e - Ag (s) Fe+ (aq) + 3e" - Fe (s) e.7996 -e.037 Al3+ (aq) + 3e" - Al (s) 2H* (aq) + 2e - H2 (9) 2H20 (1) + 2e - H2 (g) + 20H" (aq) -1.676 e.eee Au* (aq) + e" - Au (s) 1.692 -e.8277 Au+ (aq) + 3e" - Au (s) 1.498 H202 (aq) + 2H* (aq) + 2e - 2H20 (1) 1.776 Ba2* (aq) + 2e" - Ba (s) -2.912 I2 (s) + 2e" - 21" (aq) e.5355 Brz (1) + 2e" - 2Br" (aq) 1.066 2103 (aq) + 12H* (aq) + 10e - Iz (s) + 6H20 (1) Mg2+ (aq) + 2e" - Mg (s) Mn2+ (aq) + 2e" - Mn (s) 1.195 Ca2* (aq) + 2e" - Ca (s) -2.868 -2.372 Clz (9) + 2e - 20 (aq) 1.35827 -1.185 Co2* (aq) + 2e" - Co (s) -e.28 Mno2 (s) + 4H* (aq) + 2e - Mn2* (aq) + 2H20 (1) Mn04" (aq) + 8H* (aq) + 5e- Mn2+ (aq) + 4H20 (1) 1.224 Co+ (aq) + e- Co2* (aq) 1.92 1.507 Cr2* (aq) + 2e" - Cr (s) -e.913 Mno4 (aq) + 2H20 (1) + 3e- Mno2 (s) + 40H" (aq) HNO2 (aq) + H* (aq) + e- NO (g) + H20 (1) N2 (g) + 4H20 (1) + 4e - 40H- (aq) + N2H4 (aq) e.595 Cr+ (aq) + 3e" - Cr (s) -e.744 e.983 Cr* (aq) + e- Cr2* (aq) Cro,2- (ag) + 4H20 (1) + 3e" - Cr(OH)3 (s) + SOH- (aq) -0.407 -1.16 -e.13 NO3 (aq) + 4H* (aq) + 3e - NO (9) + 2H20 (1) e.957 Cu2* (aq) + 2e" - Cu (s) Cu2+ (aq) + e - Cu* (aq) e.3419 Na* (aq) + e - Na (s) -2.71 e.153 NI2+ (aq) + 2e" - NI (s) -0.257 Cu* (aq) + e" - Cu (s) e.521 02 (9) + 4H* (aq) + 4e" - 2H2O (1) 1.229 F2 (9) + 2e" - 2F" (aq) 2.866 02 (9) + 2H20 (1) + 4e" - 40H" (aq) e.401 Fe* (aq) + 2e - Fe (s) -0.447 O2 (9) + 2H* (aq) + 2e - H202 (aq) e.695 Pb2* (aq) + 2e - Pb (s) -e.1262 Pbso4 (s) + H* (aq) + 2e - Pb (s) + HSO4 (aq) -0.3588 HSO4" (aq) + 3H" (aq) + 2e - H2S03 (aq) + H20 (1) sc* (aq) + 3e" - Sc (s) Sn2* (aq) + 2e" - Sn (s) 0.172 -2.077 -e.1375 Sn+ (aq) + 2e" - Sn2+ (aq) e.151 vo2* (aq) + 2H* (aq) + e- vo2+ (aq) + H20 (1) e.991 Zn2+ (aq) + 2e" - Zn (s) -0.7618|

A galvanic cell is powered by the following redox reaction: 3 Cu (aq) + Cr(OH);(s) + 5 OH (aq) → 3 Cu" (aq) + Cro (aq) + 4H,0(1) 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 = Ov Round your answer to 2 decimal places. Half-Reaction E (V) Fe* (aq) + e" - Fe2* (aq) 0.771 Ag* (aq) + e - Ag (s) Fe+ (aq) + 3e" - Fe (s) e.7996 -e.037 Al3+ (aq) + 3e" - Al (s) 2H* (aq) + 2e - H2 (9) 2H20 (1) + 2e - H2 (g) + 20H" (aq) -1.676 e.eee Au* (aq) + e" - Au (s) 1.692 -e.8277 Au+ (aq) + 3e" - Au (s) 1.498 H202 (aq) + 2H* (aq) + 2e - 2H20 (1) 1.776 Ba2* (aq) + 2e" - Ba (s) -2.912 I2 (s) + 2e" - 21" (aq) e.5355 Brz (1) + 2e" - 2Br" (aq) 1.066 2103 (aq) + 12H* (aq) + 10e - Iz (s) + 6H20 (1) Mg2+ (aq) + 2e" - Mg (s) Mn2+ (aq) + 2e" - Mn (s) 1.195 Ca2* (aq) + 2e" - Ca (s) -2.868 -2.372 Clz (9) + 2e - 20 (aq) 1.35827 -1.185 Co2* (aq) + 2e" - Co (s) -e.28 Mno2 (s) + 4H* (aq) + 2e - Mn2* (aq) + 2H20 (1) Mn04" (aq) + 8H* (aq) + 5e- Mn2+ (aq) + 4H20 (1) 1.224 Co+ (aq) + e- Co2* (aq) 1.92 1.507 Cr2* (aq) + 2e" - Cr (s) -e.913 Mno4 (aq) + 2H20 (1) + 3e- Mno2 (s) + 40H" (aq) HNO2 (aq) + H* (aq) + e- NO (g) + H20 (1) N2 (g) + 4H20 (1) + 4e - 40H- (aq) + N2H4 (aq) e.595 Cr+ (aq) + 3e" - Cr (s) -e.744 e.983 Cr* (aq) + e- Cr2* (aq) Cro,2- (ag) + 4H20 (1) + 3e" - Cr(OH)3 (s) + SOH- (aq) -0.407 -1.16 -e.13 NO3 (aq) + 4H* (aq) + 3e - NO (9) + 2H20 (1) e.957 Cu2* (aq) + 2e" - Cu (s) Cu2+ (aq) + e - Cu* (aq) e.3419 Na* (aq) + e - Na (s) -2.71 e.153 NI2+ (aq) + 2e" - NI (s) -0.257 Cu* (aq) + e" - Cu (s) e.521 02 (9) + 4H* (aq) + 4e" - 2H2O (1) 1.229 F2 (9) + 2e" - 2F" (aq) 2.866 02 (9) + 2H20 (1) + 4e" - 40H" (aq) e.401 Fe* (aq) + 2e - Fe (s) -0.447 O2 (9) + 2H* (aq) + 2e - H202 (aq) e.695 Pb2* (aq) + 2e - Pb (s) -e.1262 Pbso4 (s) + H* (aq) + 2e - Pb (s) + HSO4 (aq) -0.3588 HSO4" (aq) + 3H" (aq) + 2e - H2S03 (aq) + H20 (1) sc* (aq) + 3e" - Sc (s) Sn2* (aq) + 2e" - Sn (s) 0.172 -2.077 -e.1375 Sn+ (aq) + 2e" - Sn2+ (aq) e.151 vo2* (aq) + 2H* (aq) + e- vo2+ (aq) + H20 (1) e.991 Zn2+ (aq) + 2e" - Zn (s) -0.7618|

Principles of Modern Chemistry
Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter17: Electrochemistry
Section: Chapter Questions
Problem 76AP
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A galvanic cell is powered by the following redox reaction: 3 Cu (aq) + Cr(OH);(s) + 5 OH (aq) → 3 Cu" (aq) + Cro (aq) + 4H,0(1) 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 = Ov Round your answer to 2 decimal places.
Transcribed Image Text:A galvanic cell is powered by the following redox reaction: 3 Cu (aq) + Cr(OH);(s) + 5 OH (aq) → 3 Cu" (aq) + Cro (aq) + 4H,0(1) 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 = Ov Round your answer to 2 decimal places.
Half-Reaction E (V) Fe* (aq) + e" - Fe2* (aq) 0.771 Ag* (aq) + e - Ag (s) Fe+ (aq) + 3e" - Fe (s) e.7996 -e.037 Al3+ (aq) + 3e" - Al (s) 2H* (aq) + 2e - H2 (9) 2H20 (1) + 2e - H2 (g) + 20H" (aq) -1.676 e.eee Au* (aq) + e" - Au (s) 1.692 -e.8277 Au+ (aq) + 3e" - Au (s) 1.498 H202 (aq) + 2H* (aq) + 2e - 2H20 (1) 1.776 Ba2* (aq) + 2e" - Ba (s) -2.912 I2 (s) + 2e" - 21" (aq) e.5355 Brz (1) + 2e" - 2Br" (aq) 1.066 2103 (aq) + 12H* (aq) + 10e - Iz (s) + 6H20 (1) Mg2+ (aq) + 2e" - Mg (s) Mn2+ (aq) + 2e" - Mn (s) 1.195 Ca2* (aq) + 2e" - Ca (s) -2.868 -2.372 Clz (9) + 2e - 20 (aq) 1.35827 -1.185 Co2* (aq) + 2e" - Co (s) -e.28 Mno2 (s) + 4H* (aq) + 2e - Mn2* (aq) + 2H20 (1) Mn04" (aq) + 8H* (aq) + 5e- Mn2+ (aq) + 4H20 (1) 1.224 Co+ (aq) + e- Co2* (aq) 1.92 1.507 Cr2* (aq) + 2e" - Cr (s) -e.913 Mno4 (aq) + 2H20 (1) + 3e- Mno2 (s) + 40H" (aq) HNO2 (aq) + H* (aq) + e- NO (g) + H20 (1) N2 (g) + 4H20 (1) + 4e - 40H- (aq) + N2H4 (aq) e.595 Cr+ (aq) + 3e" - Cr (s) -e.744 e.983 Cr* (aq) + e- Cr2* (aq) Cro,2- (ag) + 4H20 (1) + 3e" - Cr(OH)3 (s) + SOH- (aq) -0.407 -1.16 -e.13 NO3 (aq) + 4H* (aq) + 3e - NO (9) + 2H20 (1) e.957 Cu2* (aq) + 2e" - Cu (s) Cu2+ (aq) + e - Cu* (aq) e.3419 Na* (aq) + e - Na (s) -2.71 e.153 NI2+ (aq) + 2e" - NI (s) -0.257 Cu* (aq) + e" - Cu (s) e.521 02 (9) + 4H* (aq) + 4e" - 2H2O (1) 1.229 F2 (9) + 2e" - 2F" (aq) 2.866 02 (9) + 2H20 (1) + 4e" - 40H" (aq) e.401 Fe* (aq) + 2e - Fe (s) -0.447 O2 (9) + 2H* (aq) + 2e - H202 (aq) e.695 Pb2* (aq) + 2e - Pb (s) -e.1262 Pbso4 (s) + H* (aq) + 2e - Pb (s) + HSO4 (aq) -0.3588 HSO4" (aq) + 3H" (aq) + 2e - H2S03 (aq) + H20 (1) sc* (aq) + 3e" - Sc (s) Sn2* (aq) + 2e" - Sn (s) 0.172 -2.077 -e.1375 Sn+ (aq) + 2e" - Sn2+ (aq) e.151 vo2* (aq) + 2H* (aq) + e- vo2+ (aq) + H20 (1) e.991 Zn2+ (aq) + 2e" - Zn (s) -0.7618|
Transcribed Image Text:Half-Reaction E (V) Fe* (aq) + e" - Fe2* (aq) 0.771 Ag* (aq) + e - Ag (s) Fe+ (aq) + 3e" - Fe (s) e.7996 -e.037 Al3+ (aq) + 3e" - Al (s) 2H* (aq) + 2e - H2 (9) 2H20 (1) + 2e - H2 (g) + 20H" (aq) -1.676 e.eee Au* (aq) + e" - Au (s) 1.692 -e.8277 Au+ (aq) + 3e" - Au (s) 1.498 H202 (aq) + 2H* (aq) + 2e - 2H20 (1) 1.776 Ba2* (aq) + 2e" - Ba (s) -2.912 I2 (s) + 2e" - 21" (aq) e.5355 Brz (1) + 2e" - 2Br" (aq) 1.066 2103 (aq) + 12H* (aq) + 10e - Iz (s) + 6H20 (1) Mg2+ (aq) + 2e" - Mg (s) Mn2+ (aq) + 2e" - Mn (s) 1.195 Ca2* (aq) + 2e" - Ca (s) -2.868 -2.372 Clz (9) + 2e - 20 (aq) 1.35827 -1.185 Co2* (aq) + 2e" - Co (s) -e.28 Mno2 (s) + 4H* (aq) + 2e - Mn2* (aq) + 2H20 (1) Mn04" (aq) + 8H* (aq) + 5e- Mn2+ (aq) + 4H20 (1) 1.224 Co+ (aq) + e- Co2* (aq) 1.92 1.507 Cr2* (aq) + 2e" - Cr (s) -e.913 Mno4 (aq) + 2H20 (1) + 3e- Mno2 (s) + 40H" (aq) HNO2 (aq) + H* (aq) + e- NO (g) + H20 (1) N2 (g) + 4H20 (1) + 4e - 40H- (aq) + N2H4 (aq) e.595 Cr+ (aq) + 3e" - Cr (s) -e.744 e.983 Cr* (aq) + e- Cr2* (aq) Cro,2- (ag) + 4H20 (1) + 3e" - Cr(OH)3 (s) + SOH- (aq) -0.407 -1.16 -e.13 NO3 (aq) + 4H* (aq) + 3e - NO (9) + 2H20 (1) e.957 Cu2* (aq) + 2e" - Cu (s) Cu2+ (aq) + e - Cu* (aq) e.3419 Na* (aq) + e - Na (s) -2.71 e.153 NI2+ (aq) + 2e" - NI (s) -0.257 Cu* (aq) + e" - Cu (s) e.521 02 (9) + 4H* (aq) + 4e" - 2H2O (1) 1.229 F2 (9) + 2e" - 2F" (aq) 2.866 02 (9) + 2H20 (1) + 4e" - 40H" (aq) e.401 Fe* (aq) + 2e - Fe (s) -0.447 O2 (9) + 2H* (aq) + 2e - H202 (aq) e.695 Pb2* (aq) + 2e - Pb (s) -e.1262 Pbso4 (s) + H* (aq) + 2e - Pb (s) + HSO4 (aq) -0.3588 HSO4" (aq) + 3H" (aq) + 2e - H2S03 (aq) + H20 (1) sc* (aq) + 3e" - Sc (s) Sn2* (aq) + 2e" - Sn (s) 0.172 -2.077 -e.1375 Sn+ (aq) + 2e" - Sn2+ (aq) e.151 vo2* (aq) + 2H* (aq) + e- vo2+ (aq) + H20 (1) e.991 Zn2+ (aq) + 2e" - Zn (s) -0.7618|
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