5.3 Study Guide

Question 1

London dispersion

Answer 1

Intermolecular force acting between atoms and molecules that are normally electrically symmetric.

Question 2

Dipole-dipole

Answer 2

Attractive forces between positive and negative partial charges.

Question 3

Hydrogen bonds

Answer 3

Chemical bond formed between a partially positive hydrogen atom and a electronegative atom.

Question 4

Ranking intermolecular attractions from weakest to strongest and vice versa in solution

Answer 4

Weakest to Stongest: London dispersion, dipole-dipole, hydrogen.

Question 5

Determine whether a molecule is polar or nonpolar based on its structure

Answer 5

Nonpolar compounds will be symmetric while the polar will not be symmetric meaning all sides around the central atoms will not be identical.

Question 6

Determine what type of intermolecular attractions a particular molecule will be able to form based on its structure

Answer 6

Check for its polarity if it is no polar then it will only experience London dispersion, if it is polar check to see if it has a hydrogen atom bonded it if so it can be a hydrogen bond, otherwise it will experience dipole-dipole.

Question 7

Determine whether a molecule will be soluble in water based on its structure

Answer 7

If it has a polar structure, then it will be soluble in water such as OH, O which allows it to form hydrogen bonds.