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Number of carboxylic acids and esters isomers for C4H8O2

  1. Jul 1, 2016 #1

    TT0

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    1. The problem statement, all variables and given/known data

    What is the total number of isomeric carboxylic acids and esters having the molecular formula C4H8O2?

    A.6

    B.5

    C.4

    D.3

    E.2

    2. Relevant equations


    3. The attempt at a solution
    My answer was 4. The isomers I got was:

    -2-methyl propanoic acid
    -butanoic acid
    -methyl propanoate
    -ethyl ethanoate

    Did I miss any?

    Cheers!
     
  2. jcsd
  3. Jul 6, 2016 #2

    Ygggdrasil

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    Science Advisor

    What about esters based on formic acid?
     
  4. Jul 8, 2016 #3

    TT0

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    I see, I missed propyl methanoate. Cheers!
     
  5. Jul 9, 2016 #4

    Ygggdrasil

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    There are two isomers based on formic acid.
     
  6. Jul 12, 2016 #5

    TT0

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    I see, I forgot isopropyl acetate. So the answer is A. Cheers!
     
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