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

Multiple Choice

A 200.0-mL sample of the weak acid H₃A (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-