100l solution of 100gl of fe3aq has 100 mol of l added what

Question

Excess iron in the body, or hemochromatosis, can cause serious cell damage. One way to treat excess iron build up is to administer small molecules with a high affinity for iron. The small molecules form a complex ion with the iron, thus allowing the iron to be excreted. One small molecule that could be used to treat excess iron, L (M= 598.60 gmol^-1), is shown on the right.

The reaction between Fe³⁺ and L is:

Fe³⁺(aq) + L(aq) ó FeL³⁺(aq)        K_f= 4.68 * 10²⁵

1.00L solution of 1.00g/L of Fe³⁺(aq) has 1.00 mol of L added. What is the equilibrium concentration of iron(lll), (i.e., [Fe³⁺]_eq) in the final solution?