How can you predict which substance has greater intermolecular forces?

The strength of the intermolecular forces exhibited by a certain molecule goes hand in hand with its polarity and with its ability to form hydrogen bonds. Right from the get-go, nonpolar molecules will have weaker intermolecular forces compared with polar molecules of comparable size.

How do you identify a hydrogen bond donor and acceptor?

Donor count = the sum of the atoms in the molecule which have H donor property. Donor sites = the sum of the H atoms connected to the donor atoms. Acceptor count = the sum of the acceptor atoms. An acceptor atom always has a lone electron pair/lone electron pairs that is capable of establishing a H bond.

Which would have the greater intermolecular forces?

Explanation: Ion-dipole forces are the strongest of the intermolecular forces. Hydrogen bonding is a specific term for a particularly strong dipole-dipole interaction between a hydrogen atom and a very electronegative atom (oxygen, fluorine, or nitrogen).

Does SeO2 or SO2 have greater intermolecular forces?

SeO2 will have stronger intermolecular forces because it is a larger molecule than SO2 and the larger the molecule the less energy it takes to generate instantaneous dipole moments.

What is a donor and acceptor?

Donor / Acceptor Defined A donor is a high energy orbital with one or more electrons. An acceptor is a low energy orbital with one or more vacancies: A donor is an atom or group of atoms whose highest filled atomic orbital or molecular orbital is higher in energy than that of a reference orbital.

What is hydrogen donor and acceptor?

Hydrogen bond donor: A bond or molecule that supplies the hydrogen atom of a hydrogen bond. In this hydrogen bond between water and ammonia, water is the hydrogen bond donor (shown in red) and ammonia is the hydrogen bond acceptor.

Which pairs of molecules can form a hydrogen bond with one another?

Hydrogen bonding occurs only in molecules where hydrogen is covalently bonded to one of three elements: fluorine, oxygen, or nitrogen. These three elements are so electronegative that they withdraw the majority of the electron density in the covalent bond with hydrogen, leaving the H atom very electron-deficient.

Which contains hydrogen bond?

Hydrogen bonding between two water (H2O) molecules. Note that the O atom in one molecule is attracted to a H atom in the second molecule. Hydrogen bonding between a water molecule and an ammonia (NH3) molecule….