With the initial concentrations: [A] = 0.000500 M, = 0.000698 M,

[mat331760298]

with the initial concentrations: [A] = 0.000500 M, = 0.000698 M,

with the initial concentrations: [A] = 0.000500 M, = 0.000698 M, and [C] = 0 M, find the value of K if [C] = 0.0000866 M at equilibrium.

K = [C]/([A]*)

just want to check my answer of 344, seems wrong to me

 

[epenguin]

You are asking us too much - to guess what the reaction is, work it out, if not agreement make another guess, ... Without that information and your working you will probably not get an answer.