Dipole Forces Main Concept Dipole forces result from

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Dipole Forces Main Concept: Dipole forces result from the attraction among the positive ends

Dipole Forces Main Concept: Dipole forces result from the attraction among the positive ends and negative ends of polar molecules. Hydrogen bonding is a strong type of dipole-dipole force that exists when very electronegative atoms (N, O, and F) are involved.

Dipole Forces Dipoles Definition Causes Polar vs. Nonpolar Interactions Types of Dipoles Hydrogen Bonding

Dipole Forces Dipoles Definition Causes Polar vs. Nonpolar Interactions Types of Dipoles Hydrogen Bonding Dipole-Dipole-Induced Dipole Definition Causes

- Dipole: an atom or molecule which has slight negative and positive ends caused

- Dipole: an atom or molecule which has slight negative and positive ends caused by an uneven distribution of electrons - Electronegativity differences are responsible for uneven distributions of electrons between atoms

vs - Molecules with dipole moments experience Coulombic interactions resulting in net attractive interaction

vs - Molecules with dipole moments experience Coulombic interactions resulting in net attractive interaction when near each other – Intermolecular dipole-dipole forces are weaker than ionic forces/covalent bonds – Interactions between polar molecules are typically greater than between nonpolar molecules of comparable size because interactions act in addition to London dispersion forces

(from previous) – Dipole-dipole attractions represented by diagrams showing positive and negative ends of

(from previous) – Dipole-dipole attractions represented by diagrams showing positive and negative ends of polar molecules maximizing attractions and minimizing repulsions as a liquid or solid – Dipole-induced dipole interactions between polar and nonpolar molecules; strength of these forces increases with magnitude of dipole of polar molecule and with polarizability of nonpolar molecule

Question: Order the following in terms of which would have a greater magnitude of

Question: Order the following in terms of which would have a greater magnitude of dipole and explain why you think this. HF vs H 2 O vs NH 3

- Hydrogen bonding a relatively strong type of intermolecular interaction - Between hydrogen atoms

- Hydrogen bonding a relatively strong type of intermolecular interaction - Between hydrogen atoms covalently bonded to highly electronegative atoms (N, O, and F) attracted to negative ends of a dipole formed by electronegative atoms (N, O, and F) in a different molecule, or different part of same molecule - When hydrogen bonding is present, small molecules may have strong intermolecular attractions

- Representations of hydrogen bonding b/w molecules, or b/w different parts of single molecule

- Representations of hydrogen bonding b/w molecules, or b/w different parts of single molecule (DNA, proteins), show diagrams of molecules with hydrogen bonding and location of hydrogen bonds

- Ionic interactions with dipoles are important in solubility of ionic compounds in polar

- Ionic interactions with dipoles are important in solubility of ionic compounds in polar solvents

The Hertz Antenna Dipole Dipole Fundamentals A dipoleThe Hertz Antenna Dipole Dipole Fundamentals A dipole
int result 1 result 2 result 3 intint result 1 result 2 result 3 int
TOPIC Intermolecular Forces Part 2 Dipole Dipole andTOPIC Intermolecular Forces Part 2 Dipole Dipole and
Instantaneous Dipole Induced Dipole Attractions Dispersion Forces 6Instantaneous Dipole Induced Dipole Attractions Dispersion Forces 6
Forces 6 Forces 5 Forces 4 Forces 3Forces 6 Forces 5 Forces 4 Forces 3
Intramolecular Forces vs Intermolecular Forces Intramolecular Forces forcesIntramolecular Forces vs Intermolecular Forces Intramolecular Forces forces
VAN DER WAALS FORCES INSTANTANEOUS DIPOLEINDUCED DIPOLE FORCESVAN DER WAALS FORCES INSTANTANEOUS DIPOLEINDUCED DIPOLE FORCES
DIPOLE MOMENT Electronegativity Polarity of Bonds Dipole MomentDIPOLE MOMENT Electronegativity Polarity of Bonds Dipole Moment
Electric Dipole Radiation The image shows electric dipoleElectric Dipole Radiation The image shows electric dipole