which is most soluble in ethanol

[theonlytycrane]

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The answer given is (B). I thought B/C would likely be in the aqueous layer. No pH was given so it's a bit ambiguous.

 

[aalamruad]

View attachment 203795

The answer given is (B). I thought B/C would likely be in the aqueous layer. No pH was given so it's a bit ambiguous.

Ethanol is pretty polar (hence its solubility in water), so it makes sense that something hydrophilic and polar like B would be soluble in it

 

[aldol16]

The answer given is (B). I thought B/C would likely be in the aqueous layer. No pH was given so it's a bit ambiguous.

(A) is immediately ruled out because it cannot H-bond with EtOH like the others. (C) and (D) can be ruled out because they are extremely nonpolar. Think about it. Stearate is a fatty acid and (D) resembles a fatty acid with a long acyl tail. Would you expect fatty acids to be in the aqueous layer?