yes all three will hydrogen bond. Thus ethanol will have maximum hydrogen bonding. Acetone doesn’t have a H-atom that can form hydrogen bonds, so can’t form H-bonds with itself, but can provide the lone pair of electrons on the O atom) to bond with an -OH group from the alcohol. Since ethanol is a better hydrogen bond acceptor than donor, the water donor structures are lower in energy than the water acceptor structures. The molecule that provides this bond is known as the donor, while the molecule that has the electrons the hydrogen is attracted to is known as the acceptor. Hydrogen bonding, interaction involving a hydrogen atom located between a pair of other atoms having a high affinity for electrons; such a bond is weaker than an ionic bond or covalent bond but stronger than van der Waals forces.Hydrogen bonds can exist between atoms in different molecules or in parts of the same molecule.
On the other hand, for ethanol, with a 2 carbon chain, there can be some chain-chain interaction…and this along with hydrogen bonding elevates its boiling point with respect to methanol. Hence ethanol will have maximum hydrogen bonding … Ethanol contains a hydrogen atom that is a hydrogen bond donor because it is bonded to an electronegative oxygen atom, which is very electronegative, so the hydrogen atom is slightly positive. On the other hand, in case of diethyl ether, there will be no hydrogen bonding as the H atom is not attached to the electronegative atom directly. Ethanol contains the O-H bond, allowing it to create a hydrogen bond. Ethanol has the requisite H atom bonded to oxygen and can form hydrogen bonds with itself (bonding with the lone pair on an oxygen atom from a second ethanol molecule). That is called a hydroxyl group. In methoxymethane, the lone pairs on the oxygen are still there, but the hydrogens aren't sufficiently + for hydrogen bonds to form.
Hydrogen bonds occur when the proton bonds with the pair of oxygen electrons in the molecule. Hydrogen bond donor and hydrogen bond acceptor.
And by this given criterion we would infer that hydrogen bonding is STRONGER for methanol. ethanol, methanol and propanol have an OH part and that is the business end of a hydrogen bond. good luck. There are several places in … See this O-H group at the end of the molecule? 0 0 … The next homologue n-propanol has a boiling point of , and this points to the importance of chain-chain … This bond formation makes the process favourable. Carbon is only slightly more electronegative than hydrogen. Good!
The strong hydrogen bond between ethanol and water makes the largest contribution to the relative energies of the structures. Substances which hydrogen bond usually dissolve in water. While methyl ether has hydrogen atoms and lone electron pairs on an oxygen atom, hydrogen must be bonded to a very electronegative atom in order for hydrogen bonds to form.