Conduct an investigation to determine Keq of a chemical equilibrium system

In order to determine Keq of a chemical equilibrium system for example that of  iron(III) thiocyanate equilibrium, we need to conduct an experimentation applying a combination of solution chemistry, stoichiometry and spectrophotometric analysis to determine the equilibrium constant for a reaction between iron(III) ion (Fe3+) and thiocyanate ion (SCN).