In an experiment, equal volumes of 0.00200M FeCl3 and 0.00200M NaSCN were mixed together and reacted according to the equation: Fe^3+(aq) + SCN^-(aq) <--> FeSCN^2+(aq) The equilibrium concentration of FeSCN^2+(aq) was 2.70*10^-4M.
Calculate the equilibrium constant for the reaction