Consider the titration of 15.0 mL of 0.200 M phosphoric acid H3PO4(aq) with 0.200 M sodium hydroxide NaOH (aq). What is/are the major species in solution after the addition of 15.0 mL of the base,NaOH?
In the answers below: H2A^- refers to the anion with a -1 charge,HA^2- refers to a dianion with a -2 charge, and A^3- refers to the trianion with a -3 charge.
a) HPO4^2- (aq)
b) HPO4^2- (aq) and PO4^3- (aq)
c) H3PO4 (aq) and H2PO4^- (aq)
d) H2PO4^- (aq)
e) H2PO4^- (aq) and HPO4^2- (aq)
f) PO4^3- (aq)
g) H3PO4 (aq)