Determine the kinds of intermolecular forces that are present in each of the fol

Question

Determine the kinds of intermolecular forces that are present in each of the following elements or compounds. HBr only dipole-dipole forces only dispersion forces dispersion forces and dipole-dipole forces hydrogen bonding CH_3COOH only dispersion forces only dipole-dipole forces dispersion forces and dipole-dipole forces dispersion forces, dipole-dipole forces and hydrogen bonding Br_2 only dispersion forces only dipole-dipole forces only hydrogen bonding dispersion forces, dipole-dipole forces and hydrogen bonding.

Explanation / Answer

NOTE: all material which has electrons/protons, will experience dispersion forces due to electrostatic interactions, therefore it is present in ALL samples

A)

HBr is polar, therefore dipole-dipole forces are present

+ disersion forces

choose C

B)

CH3COOH, will have a dipole, therefore dipole-dipole forces are present

OH group forms Hydrogen bonds as well

since it has mass, choose dispersin forces

C)

this is nonpolar, it will only have dispersion forces alone

choose A

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