The Student Room Group

Why can simple covalent molecules dissolve in organic solvents like ethanol?

Simple covalent substances cant dissolve in water as it doesn’t have hydrogen bonding but why can it dissolve In ethanol? Also I’m aware that ethanol is made of hydrogen and carbons.
Simple covalent molecules can't dissolve in water because they are not polar. Ethanol is a polar molecule due to the hydroxyl group (the -OH) but it has a non-polar region, the C2H5 carbon chain, which means that as a solvent it can dissolve polar AND non-polar substances. Simple covalent substances can therefore dissolve in ethanol because of the non-polar region.

Quick Reply

Latest