I WOULD LIKE A BREAKDOWN OF THE EQUATIONS, I WOULD LIKE MORE THAN JUST ANSWERS.
ID: 974978 • Letter: I
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I WOULD LIKE A BREAKDOWN OF THE EQUATIONS, I WOULD LIKE MORE THAN JUST ANSWERS.
Map sapling learning Consider the malate dehydrogenase reaction from the citric acid cycle. Given the following concentrations, calculatethe free energy change for this reaction at 37.0 °C (310 K). G for the reaction is +29.7 kJ/mol. Assume that the reaction occurs at pH 7 malate-1.15 mM oxaloacetate] 0.160 mM NAD+1 420 mM NADH] = 170 mM Number k.J mol Previous Give Up & View Solution Check Answer () Next +1 Exit Hint Use an equation that expresses the relationship between the free energy change, the standard free energy change, temperature, and concentration. The malate dehydrogenase reaction yields oxaloacetate and NADH.Explanation / Answer
To solve this problem you just have to use this equation:
DG= DG0 + RTLnQ
Q= [product]/[reagents]
The reaction is:
malate + NAD+ <-----> NADH + oxaloacetate
DG= 29.7 kJ/mol + 8.314x10-3kJ/mol.K x 310K Ln (170mM)(0.160mM)/(1.15mM)(420mM)
DG= 22.3 kJ/mol
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