Determine the Molar Concentration of Ag⁺(aq) Ions in a 1 $\times$

Determine the molar concentration of Ag⁺(aq) ions in a 1.00 M solution of AgCl₂^- with no excess chloride. Given: K_f = 2.50 $\times$ 10⁵ for AgCl₂^-.

A) 2.52 $\times$ 10^-2 M
B) 1.26 $\times$ 10^-2 M
C) 0.0100 M
D) 0.0020 M
E) 2.50 $\times$ 10⁵ M