Before revision: Similarly, from the fourth equation for the equilibrium constant K2 for reaction (2), (4) Rearranging (3) gives (5) and rearranging (4), then substituting in (5), gives (6) The total concentration of dissolved inorganic carbon in the system is given by substituting in (5) and (6) .
After revision: Similarly, from the fourth equation for the equilibrium constant K2 for reaction (2), (4) Rearranging (3) gives (5) and rearranging (4), then substituting in (5), gives (6) The total concentration of dissolved inorganic carbon in the system is given by substituting in (5) and (6)