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Sulphur trioxide

  1. Apr 12, 2008 #1
    Is SO3 soluble in water??

    i know it reacts very exothermically with water to form water soluble products (H2SO4). But is SO3 itself soluble in water?
  2. jcsd
  3. Apr 12, 2008 #2
    of course, which is energetically favourable.
  4. Apr 12, 2008 #3


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    Think of it this way: If you heat (but do not try this because it can be extremely dangerous) sulfuric acid enough, it will push sulfur trioxide as a gas out of solution. Think of sulfur trioxide as the anhydrous form of sulfuric acid. Yes, sulfur trioxide is soluble in water.
  5. Apr 14, 2008 #4
    It probably is, but, have you really ever seen a water solution of SO3?
  6. Apr 14, 2008 #5
    noo.... i don't think they have those in high school labs!!
  7. Apr 14, 2008 #6
    Don't know what you intended exactly, but I intended: since SO3 reacts with water instantaneously, how can we see a water solution of it?
  8. Apr 14, 2008 #7
    awwww ok...... lol.... i didn't think of it as sarcastic... i thought there really were solutions of SO3 dissolved in water.

    haha, thnks anyway
  9. Apr 14, 2008 #8
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