Calculate the delta G’naught.
Calculate the delta G’naught.
Malate + pyruvate –> oxaloacetate + lactate
Oxaloacetate + (2H+) + (2e-) –> malate E’naught= -0.166
Pyruvate + (2H+) + (2e-) –> lactate E’naught = -0.185
Not sure how to calculate the delta G’naught. Both are recievingelectrons. But my guess is that the reduction of malate is morefavorable becaue of a higher E’naught. Therefore the overallreaction, guessing, would tend toward the left.
Answer:
Oxaloacetate + (2H+) + (2e-) –> malate E0= -0.166V
Pyruvate + (2H+) + (2e-) –>lactate E0 = -0.185V
malate ——————-> Oxaloacetate + (2H+) +(2e-) E0 =0.166v
Pyruvate + (2H+) + (2e-) ——-> lactate E0 = -0.185V
——————————————————————————————-‘
Malate + pyruvate –> oxaloacetate +lactate E0 Cell = -0.019V
n= 2
G0 = -nE0cell*F
= -2*-0.019*96500
= 3667J = 3.667KJ
G0> 0 it non spontaneous reaction.
The overall reaction to wards revers(left side)