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17 February, 14:52

Why does SO2 and water make H2SO3 and NOT H2SO4?

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  1. 17 February, 17:07
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    SO2+H2O = H2SO3

    To get H2SO4,

    SO2 must be oxidized to form SO3, Sulfur tri-oxide

    2SO2 + O2 = 2SO3 SO3 can the dissolve in water to form acid rain:

    SO3 + H2O = H2SO4
  2. 17 February, 17:41
    0
    SO₂ is a polar molecule and dissolves in water to form H₂SO₃; however, it does not have the ability to break the H-O bond in water and isolate an Oxygen atom to form H₂SO₄. This is why in the production of Sulfuric acid via the contact process, SO₂ is converted into SO₃ first.
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