[RAGINMONKEY]

I got a homework on the extraction method (or liquid-liquid) and the question ask me:

In the following molecules, what are the ones we can find in the organic layer?

http://imgur.com/Y74Hpbn
imgur link to the image of my 6 molecules. There can be more than 1.
Note: Got 1 hour to submit my homework and this is the last question I cannot answer :c
EDIT:Homework sent but still want to know how to solve that thing.

[Dan]

What characteristics make a molecule water soluble?

[Arkcon]

In one case, you have essentially the same molecule with one change.  What does that one change do?  Will the same change effect other molecules in your list?

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