The acid-dissociation constants of sulfurous acid (H₂SO3) are K₂1 = 1.5 × 10-5 and K₂2 = 1.0 × 10-7 at 25.0°C. Calculate the pH of a 0.163 M aqueous solution of sulfurous acid. 4.82 3.89 7.79 2.81 5.61

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The acid-dissociation constants of sulfurous acid (H₂SO₃) are Ka₁ = 1.5 × 10⁻⁵ and Ka₂ = 1.0 × 10⁻⁷ at 25.0°C. Calculate the pH of a 0.163 M aqueous solution of sulfurous acid.

- Option 1: 4.82
- Option 2: 3.89
- Option 3: 7.79
- Option 4: 2.81
- Option 5: 5.61

This question asks you to calculate the pH of sulfurous acid given its acid-dissociation constants and concentration. Choose the correct pH value from the options provided.
Transcribed Image Text:The acid-dissociation constants of sulfurous acid (H₂SO₃) are Ka₁ = 1.5 × 10⁻⁵ and Ka₂ = 1.0 × 10⁻⁷ at 25.0°C. Calculate the pH of a 0.163 M aqueous solution of sulfurous acid. - Option 1: 4.82 - Option 2: 3.89 - Option 3: 7.79 - Option 4: 2.81 - Option 5: 5.61 This question asks you to calculate the pH of sulfurous acid given its acid-dissociation constants and concentration. Choose the correct pH value from the options provided.
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