Consider the reaction of pyruvate with NADH form to lactate:
CH3(CO)COO−(aq) NADH(aq) H (aq) ↔ CH3 (CHOH)COO− (aq) NAD (aq)
Suppose at equilibrium [pyruvate] = 0.0010 M, [lactate] = 0.1000 M, [NADH] = 0.0010 M, and
[NAD ] = 0.25210 M. Calculate K, K′, ∆G°, and ∆Go' at pH = 7