For H₃PO₄,K_a1 = 7

question 130

Multiple Choice

For H₃PO₄,K_a1 = 7.3 × 10^-3,K_a2 = 6.2 × 10^-6,and K_a3 = 4.8 × 10^-₁₃.A 0.10 M aqueous solution of Na₃PO₄ therefore would be _____.

• A)neutral
• B)weakly basic
• C)weakly acidic
• D)strongly acidic
• E)strongly basic

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