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A solution of 5.00 mL of 0.00300 M Fe(NO3)3, 4.00 mL of 0.00300 M KSCN, and 3.00 mL of 1.0 M HNO3 is mixed together and allowed to reach equilibrium. The concentration of Fe(SCN)^2+ is found to be 2.72×10^-4 M at equilibrium. Calculate the equilibrium constant for this reaction.