[hellohello]

Does anyone know how to determine the final concentration of all reactants and products at equilibrium. I know i have to use keq...but i am totally lost. Any help would be appreciated!

[Borek]

Please elaborate.

[hellohello]

I am trying to estimate the final concentration for all reactants and products in a reaction mixture at equilibrium and determine the keq

The reaction is  NADH + Pyruvate <---> NAD+ + lactate
Initial                y           z                   0           0
Change            -x         -x                   +x         +x
Equilibrium        y-x        z-x                   x           x

ΔAtotal = ΔANADH + ΔApyruvate = εNADHxl + εpyruvatexl

          [NAD+][lactate]
Keq = ----------------
        [NADH][pyruvate]

Initial Concentrations:
[NADH] = 0.9mM
[pyruvate] = 2.5 mM

ΔAtotal =.741

[enahs]

To be   :delta:A would be Helmholtz energy, which is what I doubt you mean.

So what are your  :delta:A's and ε represent (I can list so many things for ε it is silly)?

[Borek]

I suppose s/he means absorbance.