For H₃PO₄, K_a1 = 7

question 151

Multiple Choice

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 NaH₂PO₄ therefore would be

• A) neutral.
• B) basic.
• C) acidic.

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