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Chapter 10 - a Polar substances = higher boiling points i...

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Ch. 10 I. Theories for Geometric Shape a. VSPER model i. Pairs kept as far away as possible to minimize repulsion b. Multiple bonds take up more space (but are shorter) than single bonds i. Make smaller bond angle II. Dipole Moment a. Quantitative measurement III. Polar bond a. Separation of electric charge b. Partial charges c. Asymmetry d. Dipole moment = charge (C) x distance (m) i. Very small number ii. Measured in dubyes (D) iii. 1 dubye = 3.34x10 -30 C m e. cis = polar f. trans = nonpolar IV.Polarity
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Unformatted text preview: a. Polar substances = higher boiling points i. More difficult to vaporize V. Valence Bond Theory a. Explain electron pair/covalent bond by quantum mechanics b. The greater the orbital overlap = stronger the bond c. Orbitals bond in the direction that they point towards to maximizes overlaps i. (look like kidney beans) d. Hybrid Orbitals i. Bonds of combinations of orbitals due to overlapping ii. # orbitals formed = # orbitals used...
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