0.281 mol AgNO3 and 3.17 mol NH3 were added to enough water to give 1.00 L of solution at 25 °C. Calculate the equilibrium concentration of free silver ion, [Ag+], in this solution. The formation constant for Ag(NH3)2+ (Kf) = 1.50x107 at 25 °C. 0×100 M 2.75×10-9 M 7.18×10-9 M 2.24×10-9 M 4.97×10-9 M

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