At a certain temperature, K 1.1 x 10 for the reaction Fe³⁺ (aq) +SCN⁻ (aq)⇋ FeSCN²⁺ (aq) .Calculate the concentrations of Fe³⁺ , SCN⁻, and FeSCN²⁺ at equilibrium if 0.020 mole of Fe(NO₃)₃, is added to 1.0 L of 0.10 M KSCN. (Neglect any volume change.)