Polar & Non-Polar Molecules: Crash Course Chemistry #23

All the butter is due to the countless

polar

water

molecules

that are now accumulating in my hands. That's better, but I have to go to the bathroom to wash my hands properly, so I'll be back in a bit. Likewise, the fatty acids that make up our body's cell membranes have

polar

heads that keep them interacting with the aqueous environment of our body and nonpolar tails that prevent the cells from dissolving in the surrounding water. This is great in my opinion. Thanks for watching this episode of Crash Course Chemistry. If you've been paying attention, you've learned that a molecule must have charge asymmetry and geometric asymmetry to be nonpolar.

The asymmetry of charge is due to a difference in electronegativity and you already knew that I prefer polar

molecules

. You also learned how to determine the polar moment or charge separation of a molecule, the physical mechanism behind "like dissolves like," and why water is so adept at building life on this planet. This episode of Chemistry was written and edited by Blake De Pastino, Chemistry advisors are Dr. Heiko Langer and Eddie González, and is filmed, edited and directed by Nicholas Jenkins. The script supervisor is Michael Eranda, who is also the sound designer and the. The graphics team is, as always, Thought Café.