Calculate [H⁺] in a 0

question 98

Multiple Choice

Calculate [H⁺] in a 0.40 M solution of NaH₂PO₄. (For H₃PO₄, K_a1 = 7.5 × 10^-3, K_a2 = 6.2 × 10^-8, K_a3 = 4.8 × 10^-13)

• A) 1.6 × 10^-4 M
• B) 2.5 × 10^-4 M
• C) 0.40 M
• D) 3.9 × 10^-11 M
• E) 2.2 × 10^-5 M

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