Selenous Acid,H₂SeO₃ Has Acid Dissociation Constants K_a1 = 3

question 61

Short Answer

Selenous acid,H₂SeO₃ has acid dissociation constants K_a1 = 3.5 × 10^-2 and K_a2 = 5 × 10^-8.When 25.00 mL of 0.100 M selenous acid is titrated with 0.200 M NaOH the first equivalence point occurs at pH = ________.

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