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Calculate AG (at 298K) for the reaction: 2CR2+ (aq) + 2H+ (aq) 2 2C13+ (aq) + H2 (g) At pH = 2.5 (pH = -log[H*]) and in which [Cr2*] = [Cr3+]=1.0 M; and E of Cr3+/Cr2+ = -0.41 V Hints: 1. Search for # of e- involved in the reaction 2. Determine [H*] with pH value given I 3. Calculate the cell potential Ecut with the Nerst equation 4. Use equation 1 to calculate AG energy

Calculate AG (at 298K) for the reaction: 2CR2+ (aq) + 2H+ (aq) 2 2C13+ (aq) + H2 (g) At pH = 2.5 (pH = -log[H*]) and in which [Cr2*] = [Cr3+]=1.0 M; and E of Cr3+/Cr2+ = -0.41 V Hints: 1. Search for # of e- involved in the reaction 2. Determine [H*] with pH value given I 3. Calculate the cell potential Ecut with the Nerst equation 4. Use equation 1 to calculate AG energy

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 AG (at 298K) for the reaction: 2Cr2+ (aq) + 2H+ (aq) 2 2C13+ + H2 (g) (aq) At pH = 2.5 (pH =-log[H*]) and in which [Cr2+]= [Cr3+]=1.0 M; and Eo of Cr3+/Cr2+ = -0.41 V %3D Hints: 1. Search for # of e- involved in the reaction 2. Determine [H*] with pH value given I 3. Calculate the cell potential Ecet with the Nerst equation 4. Use equation 1 to calculate AG energy
Transcribed Image Text:Calculate AG (at 298K) for the reaction: 2Cr2+ (aq) + 2H+ (aq) 2 2C13+ + H2 (g) (aq) At pH = 2.5 (pH =-log[H*]) and in which [Cr2+]= [Cr3+]=1.0 M; and Eo of Cr3+/Cr2+ = -0.41 V %3D Hints: 1. Search for # of e- involved in the reaction 2. Determine [H*] with pH value given I 3. Calculate the cell potential Ecet with the Nerst equation 4. Use equation 1 to calculate AG energy
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