3. Given the initial concentrations of Fe$^{3+}$ and SCN$^-$ found in part 2 question 1, and the equilibrium concentration of Fe(SCN)$^{2+}$ found in part 2 question 2, use the ICE table below to determine the equilibrium concentration of Fe$^{3+}$ and of SCN$^-$, and calculate a value for the equilibrium constant for this reaction.
[Fe$^{3+}$] (mol/L) [SCN$^-$] (mol/L) [Fe(SCN)$^{2+}$] (mol/L)
Initial molarity (I)
Change in molarity (C)
Equilibrium molarity (E)
$K_{eq}$ =