A 200.0-mL sample of the weak acid H 3 A (0.100 M) is titrated with 0.200 M NaOH. What are the major species at each of the following points in the titration? (Water is always assumed to be a major species.) -After 350.0 mL of 0.200 M NaOH is added A) A^3- B) HA^2-, A^3- C) HA^2- D) OH^-, A^3- E) H₂A^-, HA^2-

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After adding 350.0 mL of 0.200 M NaOH, the solution is in excess of NaOH, resulting in the presence of OH⁻ ions and the fully deprotonated form of the acid, A³⁻.

A 2000-ML Sample of the Weak Acid H3A (0

A 2000-ML Sample of the Weak Acid H₃A (0