Dipole-Dipole
The molecules dipole-dipole interactions deal with
What is a polar molecule?
The type of molecule LDF works with
What is any non polar molecule?
The intermolecular attraction between the H atom in a polar bond and an unshared e- pair on a nearby small electronegative ion or atom
What is a hydrogen bond?
The molecule an ion binds to in an ion-dipole force
What is a polar molecule?
Happens when dipole moments increase
What is a medium increase in boiling point?
3-20+ kJ/mol
What is the strength of dipole-dipole interactions?
What happens between molecules to spark LDF attraction
A biological function of hydrogen bonds?
Increases as the charge of the ion or the magnitude of the dipole moment increases
What is the magnitude of the attraction?
LDF effect on boiling point
Low elevation
The interaction of dipoles on polar molecules in close contact
What is a dipole-dipole force?
What happens when electrons happen to concentrate on one side of an atom?
What is an instantaneous dipole?
The IMFs that hydrogen bonds are stronger than
What are dipole-dipole and LDF?
The mixture ion-dipole forces are present in
What is a mixture of ionic and polar compounds?
The force increased by a larger, easier to polarize electron cloud
What is an LDF?
This distinguishes the strength of dipole attractions between similar sized/massed molecules.
Increasing polarity
When one atom's instantaneous dipole creates one on another atom
What is an induced dipole?
The property of water that exemplifies hydrogen bonding best
What is ice's density?
Biological example of ion-dipole forces
What is a hydration shell?
Of dipole-dipole and IMF, this is stronger of the two though it accounts for less total
Dipole effect on melting point
What is medium high effect?
Tends to strengthen LDF
What is increasing molecular weight and surface area
Randomizes H2O movement to hold water closer together
Heat, or melting
The highest strength of the IMFs
What is ion-dipole?
Found among molecules that contain an H bonded to F, O, or N
What is a hydrogen bond?