If the PK_a1 = 1

question 29

Multiple Choice

If the pK_a1 = 1.81,and pK_a2 = 6.91 for a 0.05 M solution of H₂SeO₃,what is its [H⁺]?

• A)0.015 M
• B)0.021 M
• C)0.025 M
• D)0.029 M
• E)0.050 M

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