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Gen Chem 2 | CHM 1046 - GEN CHEMISTRY II, Quizzes of Chemistry

Class: CHM 1046 - GEN CHEMISTRY II; Subject: CHEMISTRY; University: Florida State University; Term: Spring 2013;

Typology: Quizzes

2012/2013

Uploaded on 01/22/2013

southernyankee923
southernyankee923 🇺🇸

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TERM 1
Intermolecular Forces
DEFINITION 1
different from bondsattractive forces between
moleculesweaker than chemical bonds (ionic &
covalent)determines properties of matter (viscosity, melting
point, etc)4 types:
dipole-dipole forces
ion-dipole forces
dispersion forces
hydrogen bonding (not actually bond)
TERM 2
Dipole-Dipole Forces
DEFINITION 2
exists between polar molecules (with dipole moment)weaker
than hydrogen bondingstronger than non-polar forcesex:KCl,
BrF, SO2
TERM 3
Ion-Dipole Forces
DEFINITION 3
exists between ion and polar moleculestronger than
hydrogen bonds (strongest IM forces)cations (+) form
stronger force than anions (-)... ions with higher charges form
stronger forces because there's more space
TERM 4
Dispersion Forces
DEFINITION 4
exist in all types of molecules and ato ms, but most significant in
non-polar moleculesweakest o f the IM forces
induced dipole-induced molecule- 2 non-polar molecules form
dispersion forces
ion-induced dipole forces- an ion and a non-polar molecule for m
dispersion forces
dipole-induced dipole forces- a polar molecule and a non-polar
molecule form dispersion forces
TERM 5
Hydrogen Bonding
DEFINITION 5
type of dipole-dipole force (though stronger)different and
weaker than covalent bond, slightly weaker than ion-dipole
forcesforms between hydrogen in a polar bond and an
electronegative atom (only N, O, or F) in another molecule
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TERM 1

Intermolecular Forces

DEFINITION 1

different from bondsattractive forces between

moleculesweaker than chemical bonds (ionic &

covalent)determines properties of matter (viscosity, melting

point, etc)4 types:

dipole-dipole forces

ion-dipole forces

dispersion forces

hydrogen bonding (not actually bond)

TERM 2

Dipole-Dipole Forces

DEFINITION 2

exists between polar molecules (with dipole moment)weaker

than hydrogen bondingstronger than non-polar forcesex:KCl,

BrF, SO

TERM 3

Ion-Dipole Forces

DEFINITION 3

exists between ion and polar moleculestronger than

hydrogen bonds (strongest IM forces)cations (+) form

stronger force than anions (-)... ions with higher charges form

stronger forces because there's more space

TERM 4

Dispersion Forces

DEFINITION 4 exist in all types of molecules and atoms, but most significant in non-polar molecules weakest of the IM forces induced dipole-induced molecule- 2 non-polar molecules form dispersion forces ion-induced dipole forces- an ion and a non-polar molecule form dispersion forces dipole-induced dipole forces- a polar molecule and a non-polar molecule form dispersion forces TERM 5

Hydrogen Bonding

DEFINITION 5

type of dipole-dipole force (though stronger)different and

weaker than covalent bond, slightly weaker than ion-dipole

forcesforms between hydrogen in a polar bond and an

electronegative atom (only N, O, or F) in another molecule

TERM 6

Intermolecular Forces and Boiling Point

DEFINITION 6 consider molecular weights and types of atomsboiling pt increases with molecular weight for molecules with similar atoms and structure, and it increases with stronger IM forces for molecules with similar molecular weights.ex:2 molecules with hydrogen bonds... heavier molecule has higher boiling point. molecules that weigh about the same, 1 with only dispersion forces, other with hydrogen bonds... molecule with h-bonds has higher boiling point b/c h-bonds are stronger than dispersion forces TERM 7

Surface

Tension

DEFINITION 7

force required to break the IM forces between liquid

molecules for an object to penetrate through the liquid