Question

11. Consider the following equilibrium: Fe3+(aq) + SCN-(aq) ⇌ FeSCN2+(aq)

Initial concentrations: [Fe3+] = 0.590; [SCN-] = 1.239; [FeSCN2+] = 0

The equilibrium concentration of [FeSCN2+]eq = 0.454 M.

What is the equilibrium concentration of Fe3+?

[Fe3+]eq =____ M

12. Consider the following equilibrium: Fe3+(aq) + SCN-(aq) ⇌ FeSCN2+(aq)

Initial concentrations: [Fe3+] = 0.590; [SCN-] = 1.239; [FeSCN2+] = 0

The equilibrium concentration of [FeSCN2+]eq = 0.454 M.

What is the numerical value of KC for this equilibrium?

KC =