Question: 1 below are the half reactions for sulfate reduction using...
1) Below are the half reactions for sulfate reduction using acetate as a source of electrons, energy, and carbon.
CO2 + 8e- -> CH3COO- (-0.29 volts)
SO42- + 8e- -> H2S (-0.22 volts)
A) If you balance and combine the reactions so that 34 molecules of CH3COO- are oxidized to CO2, how many electrons are transfered from carbon to sulfur?
B) Using the information given, calculate the ΔE for this reaction, balance the full reaction to determine the n, the number of electrons transfered when 7 molecules of SO42-are reduced. Finally, use the simplified Nernst Equation ΔG = -nFΔE, where F = 96.48 kJ (mol e-) to determine the Gibbs Free energy available to do work! Report your answer in kJ per mole rounded to two decimal places.