Conceptual Chemistry
Chapter 7: How Molecules Mix
John introduces Chapter 7 by showing how oxygen mixes with water. Duration 2:19.
If you understand what an ion is and what a dipole is, then you can understand how there can be an attraction between the two. Duration: 4:09.
The slightly negative side of one dipole may be attracted to the slightly positive side of another dipole. This attraction is called the dipole-dipole attraction. The special case of the hydrogen bond is also discussed. Duration: 8:19.
An induced-dipole is a temporary occurrence between a nonpolar molecule and a dipole. An induced dipole is weak yet responsible for a nonpolar material's ability to dissolve in a polar material. Oxygen dissolving in water is an example. Duration: 6:11.
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Electrons of a nonpolar molecule tend to be distributed evenly. When they are not, a temporary dipole occurs. This temporary dipole may induce a dipole in a neighboring nonpolar molecule. Duration: 13:15.
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