Hydrogen Bond forms Between
Hydrogen nitrogen or flourine
dipole-dipole bonds form between
2 polar molecules (NOT H,N or F)
London dispersion forces forms between
2 non-polar molecules
example of hydrogen bond
water, hydrofluoric acid, ammonia
example of dipole-dipole bonds
CO and HCF
example of london dispersion forces
O2 and CH4
relative strength of hydrogen bonds
very strong
relative strength of dipole-diple bonds
strong
relative strength of london dispersion forces
very weak
resulting properties of hydrogen bonds
capillary action, adhesion
resulting properties of dipole-dipole
liquid at room temperature
resulting properties of london dispersion forces
gas at room temperature
where do inter-molecular forces happen?
between two different molecules
what are al inter molecular forces considered to be?
weak forces
what are the only substances that experience inter-molecular forces?
polar covalent and non-polar covalent compounds
when are all inter-molecular forces caused?
when covalent molecules have a slight dipole moment
what does having a dipole moment mean?
that the molecule has slightly charged ends that attract or repel each other due to electrostatic forces
what are inter-molecular forces useful for
determining a compounds melting point, boiling point, and solubility.
