solubility of carboxylic acids

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Phuong Pham 3G
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solubility of carboxylic acids

Postby Phuong Pham 3G » Mon Mar 09, 2015 1:16 am

Are carboxylic acids more soluble in water compared to alcohols?

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Re: solubility of carboxylic acids

Postby Chem_Mod » Mon Mar 09, 2015 9:44 am

If you remember from 14A, the general rule is "like dissolves like". Since water is polar, polar molecules will dissolve in it.
Alcohols have one polar O-H group which forms hydrogen bonds with water.
Carboxylic acids also have one O-H, but they also have the C=O bond, where the O is very electronegative and can also form hydrogen bonds.

Carboxylic acid functional groups can form more extensive hydrogen bonds with the water thus it is more soluble.


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