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Ethylenediaminetetraacetic acid, H4 Y, is a weak acid with successive acid dissociation constants of 0.010,2.19 ×10^-3, 6.92 ×10^-7, and 5.75 ×10^-11. Figure 9.46 shows a titration curve for H4 Y with NaOH. What is the stoichiometric relationship between H4 Y and NaOH at the equivalence point marked with the red arrow? | Numerade