Formal Charge

This organic chemistry video tutorial explains how to calculate the formal of an atom in a molecule using a simple formula.

Valence Bond Theory - Full 33 Minute Video:

Formal Charge Review Notes:

Which Bond Is More Polar?

Condensed Structures to Skeletal Structures:

Functional Groups Review:

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Primary, Secondary, & Tertiary Functional Groups:

Finding Lone Pairs Using Formal Charge:

Dipole Moment & Electronegativity:

Predicting Bond Angles:

Valence Bond Theory:

Hybridization of Atomic Orbitals:

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Bond Strength and Bond Length:

Orbital Overlap and Bond Length:

Organic Chemistry PDF Worksheets:

Organic Chemistry Exam 1 Playlist:

Full-Length Videos and Worksheets:

[danielsmirnov]

I like to use a mnemonic to help remember the formula:
Valence e - Lone pair e - # bonds
V-LP-B
Very little people blink
Maybe it helps some people!

[mayabarnard-davidson]

This makes me so happy to see someone explain organic chemistry so fluidly! Thank you!

[georgesadler]

Professor Organic Chemistry Tutor, thank you for showing/explaining How to calculate the Formal Charge of an atom in a molecule using a simple formula in Organic Chemistry. Organic Chemistry is a unique course with many tools to learn. This is an error free video/lecture on YouTube TV with the Organic Chemistry Tutor.

[brandenanderson]

Thank you mark wahlberg, this was more helpful than my 15 minutes of tutoring offered by students who are mediocre at best with chemistry at a school I pay 55k a year for. (ending my passive aggressive rant on school's tutor system now)

[SirSoccer]

Sir, you are the best at chemistry. I tried to watch Sal Khan, the guy drives me crazy, he talks too much. Very straightforward and easy. Thank You

[shahin]

I've said it many times, this guy is a GOAT!!!

[ethanoneill]

I am taking this class next semester and fully expect to return to this video.

[johmcg]

Why are their six lone pairs on the oxygen atom? Because he applied the octet rule with oxygen. It has 6 valence electrons and wants 2 more to be happy. This needs to be done before applying the formula for getting the formal charge for each atom in the molecule except hydrogen. Hydrogen does not follow the octet rule. It needs 2 electrons in its outer shell to be happy. It already has 1 valence electron in its natural state.

[hookem]

at 2:03 why doesn't Carbon have an octet?

For instance given the structure of some alcohol, I know the oxygen has two lone pairs of electrons (because it has 6 valence electrons and only two of those electrons are being used in bonds).

Can't I use the same idea of valence electrons when looking at a molecule that has a carbon with three bonds? Can I not visualize a free non-boned valence electron? In this case wouldn't the carbon have a -1 charge?

[toksiegoncalves]

For the carbocation example at 2:18, could you explain why there no lone pairs on the carbon atom? Not understanding, doesn't the octet rule apply?

[sumalatha]

thanks you soo much this video helped me alot in understanding the subject

[mohammedabdirashid]

Thanks sir, but iam not native person but I tries to understand you .love u sir

[EggzyEggzy]

thanks man you made this way easier to understand :)

[shreya]

Yeah all this is okay, but what I was really looking for is the feel of formal charge ! Like I wanna understand that formula

[yolarola]

what if they dont give you the drawing of the structure and they just give you C02 4 example. How do you make sure the bonds are correct and therefore the dots_

[noureddinebenharkat]

Thank you very much for this easy way. But please tell me the dufference between Formal charge and Oxydation number of the element. Thanks again and wish u the best.

[Coxing]

thank you so much im genuinely glad i found this tutorial and gave it a chance it really helped me understand

[IbnuBashiir]

Hey The Organic Chemistry Tutor!
How it can be possible that N has 4 bonds?
I was all the videos lectures and I'm really one of your students that follow your channel and lessons and sometimes I have to ask some questions!
Please and please help med because according to Lewis Structure or Lewis dots Nitrogen can have only 3 bonds and in this video I see that N has 4 4:03 bonds like Carbon! How is this?

[briannakmattis]

I have my first midterm for OCHEM I tomorrow...Binge time!

[tovaeashae]

OMG I love you! my frustration is no longer a thing