Determine the concentration of metal ion at equilibrium using the following data: One liter of 1.20 M ammonia solution is added to 0.140 mol of MX (X is an element that forms 6+ a monovalent ion). The K, of the complex formed M(NH3)* is 5.010. Answer Choices: (A) 0 M (B) 1.2910-31 M (C) 1.29x10-30 M (D) 8.69 10-30 M