An Aqueous Solution Is 0

Short Answer

An aqueous solution is 0.2 M in both Mg²⁺ and Pb²⁺ ions. You wish to separate the two metal ions by adding oxalate, C₂O₄^2-. What is the highest possible oxalate-ion concentration such that only one of the two metal ions will form a solid?K_sp (MgC₂O₄) = 8.5 x 10^-5 K_sp (PbC₂O₄) = 2.7 x 10^-11