Question: Solid KSCN was added to a 2.00 M Fe3+ solution so that it was also initially 2.00 M SCN. These ions then reacted to give

Solid KSCN was added to a 2.00 M Fe3+ solution so that it was also initially 2.00 M SCN. These ions then reacted to give the complex ion Fe(SCN)2+, whose formation constant was 9.0 ×102. What is the concentration of Fe3+(aq) at equilibrium? Be sure to check any simplifying assumption you make.

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