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Homework Help: How many isomers?

  1. Oct 2, 2011 #1
    1. The problem statement, all variables and given/known data
    How many isomers are there in the molecular formula C3H6O2?


    I know that the above molecular formula is propanoic acid, but it doesn't help. I wasted some time drawing structural formulas and I got 3 as the answer. Is there any short-cut way to find the answer? Thanks.
  2. jcsd
  3. Oct 2, 2011 #2


    User Avatar

    Staff: Mentor

    No shortcuts. And there are many, many more than 3.
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