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Consider the coordination of Cu2+ by the tridentate iminodiacetate ligand, HN(CH2CO2-)2, abbreviated A2-. When the monoprotonated form, H2N(CH2CO2-)2, abbreviated HA-, is added to an aqueous solution of Cu2+, the following equilibrium is rapidly established: ?Cu?^(2+)+HA?CuA+H^+ If a solution prepared by combining 100 mL of .2 M Cu2+ and 100 mL of .2 M HA- is adjusted to pH 1.6 with NaOH, what are the concentrations of Cu2+, HA-, and CuA in the solution? (The Ka for HA- is 4.70X10-10, and K1 for Cu2++A2-?CuA is 4.26X1010.

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