Law of Mass Action

The law of mass action can be represented as follows:

k1
[Ag] x [Ab] ----------------> [Ag * Ab]
k2

where [ ] = concentration, K1 = association constant, and k2 = disassociation constant.

Because we want to obtain a large [Ag.Ab], we want k1 to be larger than k2. Put another way,

k1 [Ag * Ab]
k = ----- = --------------
k2 [Ag] x [Ab]


Law of Mass Action