The “standard” solution (test tube #6) is prepared from mixing 9.00 mL of 0.200 M Fe(NO3)3 with 1.00 mL of 0.00250 M KSCN. Build a limiting reactant RICE table. What is the resulting concentration of FeSCN2+? Hint: Because there is a HUGE excess of Fe 3+, it is safe to assume that the reaction proceeds to complete. This is NOT an equilibrium problem, it is a limiting reactant problem. You may assume volumes are additive (we want concentration, molarity of FeSCN2+, not moles!)
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