If you were setting up an electron transport chain, and you want the electrons t

Question

If you were setting up an electron transport chain, and you want the electrons to move from left to right, how would you organize the following pairs of compounds. Which one would be first, second, third and last?

Compound pair Standard Reduction Potential, Eo
Compounds R +0.07
Compounds S -0.22
Compounds T +0.82
Compounds U -0.32 1st_____________________2nd_________________3rd_____________________4th____________________

Otherwise, calculate the change in standard free energy using the following information. Show your work.

G°’ = -2.3 R T log Keq with the equilibrium conditions of [Product] = 10 and [Substrate] = 2, R =1.987 cal/mol and T = 298 K

Explanation / Answer

G°’ = -2.3 R T log Keq

        = - 2.3 x 1.987 x 298 x [product] / [substrate]

        = - 2.3 x 1.987 x 298 x 10 / 2

        = - 6809.5 cal

standard free energy G = - 6809.5 cal

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