A solution containing 20 0 mL of 1 00 10 3 M Co 2 in the presence of 0 10 M C 2 O 4 2 at pH 9 00 was titrated with 1 00 10 2 M EDTA Using formation constants from Appendix I for Co(C 2 O 4 ) and Co(C 2 O 4 ) 2 2 , calculate pCo 2 for the following volumes of added EDTA 0, 1 00, 2 00, and 3 00 mL Consider the concentration of C 2 O 4 2 to be fixed at 0 10 M Sketch a graph of pCo 2 versus milliliters of added EDTA

Question: A solution containing 20.0 mL of 1.00 10 -3 M Co 2+ in the presence of 0.10 M C 2 O 4 2- at

A solution containing 20.0 mL of 1.00 × 10^-3 M Co²⁺ in the presence of 0.10 M C₂O₄^2- at pH 9.00 was titrated with 1.00 × 10^-2M EDTA. Using formation constants from Appendix I for Co(C₂O₄) and Co(C₂O₄)²₂^-, calculate pCo²⁺ for the following volumes of added EDTA: 0, 1.00, 2.00, and 3.00 mL. Consider the concentration of C₂O₄^2- to be fixed at 0.10 M. Sketch a graph of pCo²⁺ versus milliliters of added EDTA.

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