The Acid-Dissociation Constants of Sulfurous Acid (H₂SO₃)are K_al = 1

question 15

Multiple Choice

The acid-dissociation constants of sulfurous acid (H₂SO₃) are K_al = 1.7 × 10^-2 and K_a2 = 6.4 × 10^-8 at 25.0°C. Calculate the pH of a 0.163 M aqueous solution of sulfurous acid.

• A)4.53
• B)1.28
• C)1.86
• D)6.21
• E)1.93

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