Intermolecular Forces

Question 1

Intramolecular forces vs Intermolecular forces

which is STRONGER

Answer 1

intramolecular (between atoms)

Question 2

BOND TYPES arrangement based on strength

Answer 2

1. Ionic
2. Covalent
3. Metallic

Question 3

IMFAs arrangement based on strength

Answer 3

1. Ion-ion
2. Ion-dipole
3. Hydrogen Bonding
4. Dipole-dipole
5. London dispersion

Question 4

what DEVELOPS in London Dispersion Forces

Answer 4

INDUCED DIPOLE - temporary, instantaneous dipole

Question 5

what IMFA is present in all molecules

Answer 5

LDF

Question 6

what IMFA is the ONLY one present in NOBLE GASES

Answer 6

LDF

Question 7

relationship of the ff with LDF

1. atomic radius
2. molar mass
3. surface area

Answer 7

DIRECT: for all

atomic radius: at bigger atoms, valence e- are less attracted to nucleus thus can form induced dipoles more easily

surface area: more linear-» more area exposed

Question 8

Polarizability DEFINITION

Answer 8

tendency of atom to acquire an induced dipole

Question 9

what among the 2 types of intermolecular interactions DOMINATES in dipole-dipole forces?

and which of these do liquids experience and why?

Answer 9

attractive intermolecular interactions over repulsive

both because they are free and continuous

Question 10

which IMFA contain partial charges due to permanent dipole

Answer 10

Dipole-dipole forces

Question 11

H + what

to attain hydrogen bonding

Answer 11

N, O, F and to some extent S and Cl

Question 12

what IMFA is formed from the combination of short dipole-dipole moments and large bond dipoles

Answer 12

hydrogen bonding

Question 13

Requirements for H-bonding sites

Answer 13

O, N, F

or

H attached to above

Question 14

STRONGER IMFA PRIORITIZATION

Answer 14

of H bonding sites > H bonding > molar mass > polarity

Question 15

NONPOLAR rules

Answer 15

1. Monoatomic
2. C + H

Question 16

POLAR RULES

Answer 16

H + N, O, F

Question 17

palatandaan sa chemicals ending with -one

Answer 17

NO hydrogen bonding