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4) The picture is from the lecture slides. It is a few of the standard half-cell reactions from Table 13-7 in your book (and lecture slide), and includes the extreme E°s, and some middle ones. Table of Standard Reduction Potential s Hall-reaction E (V) 10, + 2H* + 2e H,0 P Fe + e- Fe?* NO + 2H* + 2e NO; + H,0 Cytochrome f (Fe") +e cytochrome f(Fe) 0.816 0.771 0.421 0.365 0.031 Fumarate + 2H + 2e succinate 2H + 2e- H, Cat standard conditions, pH 0) Crotonyl-CoA + 2H" + 2e butyryl-CoA 0.000 -0.015 a-Ketoglutarate + CO, + 2H* + 2e isccitrate 2H* + 20 Hạ (at pH 7) Ferredoxin (Fe) +e ferredoxin (Fe) -0.38 -0.414 -0.432 5) Which reduction is the most spontaneous; meaning which reduction is associated with the most negative AGo. 6) Pick the two reactions that when combined as a balanced redox reaction will produce the most free energy. Write that balanced reaction (Hint, run ferredoxin (Fe2*) backwards and use this as your source of electrons) IOTTOM MIDDLE TOP

4) The picture is from the lecture slides. It is a few of the standard half-cell reactions from Table 13-7 in your book (and lecture slide), and includes the extreme E°s, and some middle ones. Table of Standard Reduction Potential s Hall-reaction E (V) 10, + 2H* + 2e H,0 P Fe + e- Fe?* NO + 2H* + 2e NO; + H,0 Cytochrome f (Fe") +e cytochrome f(Fe) 0.816 0.771 0.421 0.365 0.031 Fumarate + 2H + 2e succinate 2H + 2e- H, Cat standard conditions, pH 0) Crotonyl-CoA + 2H" + 2e butyryl-CoA 0.000 -0.015 a-Ketoglutarate + CO, + 2H* + 2e isccitrate 2H* + 20 Hạ (at pH 7) Ferredoxin (Fe) +e ferredoxin (Fe) -0.38 -0.414 -0.432 5) Which reduction is the most spontaneous; meaning which reduction is associated with the most negative AGo. 6) Pick the two reactions that when combined as a balanced redox reaction will produce the most free energy. Write that balanced reaction (Hint, run ferredoxin (Fe2*) backwards and use this as your source of electrons) IOTTOM MIDDLE TOP

Chemical Principles in the Laboratory
Chemical Principles in the Laboratory
11th Edition
ISBN:9781305264434
Author:Emil Slowinski, Wayne C. Wolsey, Robert Rossi
Publisher:Emil Slowinski, Wayne C. Wolsey, Robert Rossi
Chapter32: Voltaic Cell Measurements
Section: Chapter Questions
Problem 2ASA
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4) The picture is from the lecture slides. It is a few of the standard half-cell reactions from Table 13-7 in your book (and lecture slide), and includes the extreme E°s, and some middle ones. Table of Standard Reduction Potential s Half-reaction E" (V) 0.816 0, + 2H* + 2e H0 Fe + e Fe NO, + 2H* + 2e NO, + H,0 Cytochrome f (Fe") + e cytochrome f (Fe) 0.771 0.421 0.365 Fumarate + 2H + 2e succinate 2H + 2e- H, (at standard conditions, pH 0) Crotonyl-CoA + 2H* + 2e - butyryl-CoA 0.031 0.000 -0.015 0.38 a-Ketoglutarate + CO, + 2H* + 2e isocitrate 2H* + 20- H, (at pH 7) Ferredoxin (Fe) + e ferredaxin (Fe) -0.414 -0.432 5) Which reduction is the most spontaneous; meaning which reduction is associated with the most negative AG°. 6) Pick the two reactions that when combined as a balanced redox reaction will produce the most free energy. Write that balanced reaction (Hint, run ferredoxin (Fe2+) backwards and use this as your source of electrons) IOTTOM MIDDLE TOP
Transcribed Image Text:4) The picture is from the lecture slides. It is a few of the standard half-cell reactions from Table 13-7 in your book (and lecture slide), and includes the extreme E°s, and some middle ones. Table of Standard Reduction Potential s Half-reaction E" (V) 0.816 0, + 2H* + 2e H0 Fe + e Fe NO, + 2H* + 2e NO, + H,0 Cytochrome f (Fe") + e cytochrome f (Fe) 0.771 0.421 0.365 Fumarate + 2H + 2e succinate 2H + 2e- H, (at standard conditions, pH 0) Crotonyl-CoA + 2H* + 2e - butyryl-CoA 0.031 0.000 -0.015 0.38 a-Ketoglutarate + CO, + 2H* + 2e isocitrate 2H* + 20- H, (at pH 7) Ferredoxin (Fe) + e ferredaxin (Fe) -0.414 -0.432 5) Which reduction is the most spontaneous; meaning which reduction is associated with the most negative AG°. 6) Pick the two reactions that when combined as a balanced redox reaction will produce the most free energy. Write that balanced reaction (Hint, run ferredoxin (Fe2+) backwards and use this as your source of electrons) IOTTOM MIDDLE TOP
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