Nitrate (NO3-and Nitrite (NO2-) look a lot alike, and so do Sulfate (SO42-and Su

Question

Nitrate (NO3-and Nitrite (NO2-) look a lot alike, and so do Sulfate (SO42-and Sulfite (SO32 Some redox potentials in the tower are pH specific, for example Iron (Fe) depends on phH Make sure you pick the one the question is asking you about. Use the equation E°cell - E reduction+Eoxidation and the redox tower on page 82 of the texktbook to solve for E ell, What is the redox potential (AE) for the oxidation of NADH paired with the reduction of FMN, part of Complex 1 of the ETC? The E for the FMN>FMNH2 half reaction is-0.22 Enter your answer rounded to two decimal places Do these half reactions form a spontaneous reaction? A) Yes B) No Enter A for yes or B for no

Explanation / Answer

E0cell = E0reduction + E0oxidation

Therefore,

E0cell = E0reduction of FMN + E0oxidation of NADH

E0cell = -0.22 + (-2.80)

E0cell = -3.02

Gibbs free energy is a measure of spontanity,positive emf corresponds to negative G.Therefore the above reaction is not a spontaneous reaction.

1]E0cell = -3.02

2]No

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