EQUILIBRIUM: To prepare the standard solution, a very large concentration of ferric ion is added to a small initial concentration of thiocyanate ion.

True or False

It would help if we knew what you were doing.

We are determining Chemical Equilibrium: Finding a Constant Kc...
For the following Chemical Reaction:

Fe3+(aq) + SCN-(aq) <> FeSCN2+(aq)

I can't be much help here. You know what you added to what so you know if the ferric ion concentration was large and the thiocyante concentration ion was small. I expect you are adding various amounts of ferric to thiocyante and you will calcuate Kc for each addition.

True...i did the experiment in class