CHAP13_new - Intermolecular Forces: Intermolecular Liquids,...

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Chapter 13 1 Intermolecular Forces: Intermolecular Forces: Liquids, and Solids Liquids, and Solids Chapter 13 Chapter 13
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Chapter 13 2 A Molecular Comparison of Liquids A Molecular Comparison of Liquids and Solids and Solids
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Chapter 13 3 Intermolecular Forces Intermolecular Forces
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Chapter 13 4 Intermolecular Forces Intermolecular Forces Ion-Dipole Forces Ion-Dipole Forces - Interaction between an ion (Na + ) and a dipole (water). - Strongest of all intermolecular forces
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Chapter 13 5 Intermolecular Forces Intermolecular Forces
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Chapter 13 6 Intermolecular Forces Intermolecular Forces Dipole-Dipole Forces Dipole-Dipole Forces - Interaction between an dipole on one molecule and a dipole on an adjacent molecule. - Dipole-dipole forces exist between neutral polar molecules. - Weaker than ion-dipole forces
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Chapter 13 7 Intermolecular Forces Intermolecular Forces
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Chapter 13 8 Intermolecular Forces Intermolecular Forces London Dispersion Forces London Dispersion Forces Induced Dipole – Induced Dipole Induced Dipole – Induced Dipole - Weakest of all intermolecular forces. - It is possible for two adjacent nonpolar molecules to affect each other. - The nucleus of one molecule (or atom) attracts the electrons of the adjacent molecule (or atom). - This attraction causes the electron clouds become distorted. - In that instant a polar molecule (dipole) is formed (called an instantaneous dipole).
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Chapter 13 9 Intermolecular Forces Intermolecular Forces London Dispersion Forces London Dispersion Forces
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Chapter 13 10 Intermolecular Forces Intermolecular Forces Hydrogen Bonding Hydrogen Bonding - A special case of dipole-dipole forces. - This intermolecular force is very strong. - Strongest of the three Van der Waal’s forces (Hydrogen bonding, Dipole-dipole, London forces,) - H-bonding requires H bonded to an electronegative element (most important for compounds of F, O, and N).
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Chapter 13 11 Intermolecular Forces Intermolecular Forces Hydrogen Bonding Hydrogen Bonding
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Chapter 13 12 Some Properties of Liquids Some Properties of Liquids Viscosity Viscosity
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This note was uploaded on 11/16/2011 for the course CHEM 1211k taught by Professor Wood during the Fall '07 term at Valdosta State University .

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CHAP13_new - Intermolecular Forces: Intermolecular Liquids,...

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