If the initial antibody polymer has a concentration of 0.04 mol/L and the equilibrium constant (same for every step) is 9500 L/mol, what is the antibody monomer concentration at equilibrium condition (i.e. how many monomers have not reacted)?

Note: In general, the product of equilibrium constant (K) and antibody monomer concentration (CM) is a constant and is very small (K*C_M<< 1) after the system reaches equilibrium