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Best Answer: ethanol because of the OH polar head is more soluble in water because it forms hydrogen bonds with H20 than the CH3 in dimethyl ether.Also alcohol is more soluble then ethers because of that OH polar head.In addition, 1-5 carbons chain are generally soluble but more preference is given to the one with less carbon chain and OH polar head.Source(s): took organic chem 1 and 2.ating Newest Oldest. Best Answer: ethanol because of the OH polar head is more soluble in water because it forms hydrogen bonds with H20 than the CH3 in dimethyl ether. Also alcohol is more soluble then ethers because of that OH polar head.
Propanal=Yes.. up to 20g/100ml http://en.wikipedia.org/wiki/Propanal Cyclohexanone=Slightly soluble: http://en.wikipedia.org/wiki/Cyclohexanone Benzaldehyde=Yes but not much..0.6g/100ml http://en.wikipedia.org/wiki/Benzaldehyde Long Live Wikipedia.es, polarity does play a role but for these examples Whether or not something is soluble is down to how much the molecule would prefer to interact with water compared to itself. Keep in mind that the larger a molecule the stronger the van der waals forces between itself and other molecules.