For H₃PO₄, K_a1 = 7.3 × 10^-3, K_a2 = 6.2 × 10^-6, and K_a3 = 4.8 × 10^-13.An aqueous solution of Na₃PO₄ therefore would be A)neutral B)basic C)acidic

Question

Quizplus · Accepted Answer

Na+ is the conjugate base of NaH, which is a strong base. When dissolved in water, it will increase the concentration of OH- ions and make the solution basic. Therefore, the aqueous solution of NaHSO4 would be basic.

For H3PO4, Ka1 = 7

For H₃PO₄, K_a1 = 7