試題詳解

5. Calculate the concentration of Ag⁺ in a solution prepared by mixing 150.0 mL 1.0×10^－3 M AgNO₃ with 200.0 mL 5.00 M Na₂S₂O₃.(K₁ = 7.4×10⁸, K₂ = 3.9×10⁴)
(A) 1.8 x 10^-18 mol/L
(B) 4.3 x 10^-4 mol/L
(C) 3.8 x 10^-9 mol/L
(D) 8.30 x 10^-4 mol/L
(E) 2.86 x 10^-3 mol/L