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Homework Help: Partition Coefficient

  1. Sep 12, 2011 #1
    1. The problem statement, all variables and given/known data
    What exactly does partition coefficient tell us? if I have a low partition coefficient, does that mean its less soluble in that compound?

    2. Relevant equations

    3. The attempt at a solution

    I had .0555g Benzoic acid mixed with water and methylene chloride. It formed two layers of which BA (Benzoic acid) is dissolved in water or methylene chloride. I pippeted out the methylene chloride and heated it, and there is .011g of BA in the vial. I got a partition coefficient of around .25. Does this mean that BA is more soluable in water since .0445g of BA was still in water?

    But this doesn't make sense because when I looked it up, it says BA is more soluble in methylene chloride.
  2. jcsd
  3. Sep 13, 2011 #2


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    Staff: Mentor

    I guess you are confusing intensive and extensive properties. You have not mentioned volumes - what they were?
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