For H₃PO₄,K_a₁ = 7.3 × 10^-³,K_a₂ = 6.2 × 10^-⁶,and Ka₃ = 4.8 × 10^-¹³.A 0.10 M aqueous solution of NaH₂PO₄ therefore would be _____.

Question

Quizplus · Accepted Answer

The given molecule is NaHSO4 which upon dissociation in water produces H+ ions. The Ka value for HSO4- is 1.2 × 10^-2 which indicates that it is a weak acid. Therefore, the solution will be weakly acidic.

For H3PO4,Ka1 = 7

For H₃PO₄,K_a₁ = 7