Added: 1 year ago
From: khanacademy
Views: 85,868
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  • really thanks this was awsome! This and your atoher videos explaine things better then my teacher does and i am so happy that i found yor videos its going to help me alot !

  • Chemistry isn't really my favourite subject at all... but I love organic chem.... <3 thanks for the video, the explanation was so clear and easy to remember

  • Man, i promise you, if you start charging money for these videos then THEY WIN!!!!!!!!!

  • Thanks for yet Another sexy video!

  • i don't mean to be a douche.... but the plural of nucleus is nuclei.... just sayin'

  • @DocterApricot

    I see the good docter is out making spelling corrections.... I hope the meaning isn't lost.

  • where are the r and s configs i suck at that

  • our teacher called this the "back side attack". you said they have to "bump into each other the right way." lol,

  • You're changing the world for the better. Free education, you deserve a Nobel Prize. Also, I really like how you personify the molecules. It really makes me feel like I have a personal bond to them. :)

  • @imkaneforever "It really makes me feel like I have a personal bond to them" I see what you did there =P

  • Without him I think many college classes would be failed

  • @funuto The savoir of many students.

  • Nuclei not nuceluses.

  • @zapfaggot sal is about 1000000X smarter than you so STFU!

  • Seven, seven valence electrons, ah ha ha ha ha!

  • I spend more time with Sal then with my boyfriend.

  • *Nuclei, Sal, Nuclei! lol

  • its nuclei not nucleusess

  • it likes other peoples nucleuseses....:P

  • this is so good. so useful for tmr's exam. thank you so much!

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  • I don't understand. At 2:20, why would oxygen give an electron to the hydrogen if he is more electronegative, he wants electrons, and then the oxygen gets a partial positive charge? I'm confused..

  • @Palmar3s yes i agree with u .. im confused too !

    and secondly y will the (oh-) group will join to Carbon Not Br .. Since Br is more electronegative

  • @s05bf1c5

    yea.I think that the oxygen giving up an electron is because H20 water already has a complete octet, since it's full and if it gains another electron it will violate the octet rule.I'm not sure.

    Secondly,Br is more electronegative so it's already giving C a partial +,since BR is a good leaving group,Br leaves.Then OH- attacks the C that has a partial +. OH- is the Nucleophile, it likes nucleousses that have positive charges. Since it's a Sn2 reaction,everything happens in one shot :)

  • Me in orgo class :(

    Me watching your vids :)

    Keep up the good work!

  • so the bromide just breaks out of the molecule

  • why does the "whole" Bromide leaves when recieving the electron from the hydroxide?

  • your awesome man , marry me

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  • AHAHAHHA i believe the pleural for nucleus is nuclei.

  • B-e-a-utiful!

  • You are really doing a service for students!

  • You are really doing students a service! 

  • Nucleusssss'sss'sssss!!! lol

  • "Will attack the Carbon... Or, I shouldnt say attack that sounds very aggressive" Lol.

  • can anybody link me to a video where he shows protection group chemistry using grignard reagents? i have good enough notes but id love to see how mr. khan teaches it

  • nuclei!

  • your organic videos make me orgasmic ;)

  • nucleuseseseseseses

  • @zapfaggot the best part is that it made sense

  • Thank you for the video. The structure drawn towards the end of the video is actually the transition state, not the intermediate. Transition states and intermediates are not the same. An intermediate would be for example the carbocation in an alkene addition rxn. They're much more energetically stable than transition states

  • today my professor taught this chapter, and wow!!! and sal has done these...thanks sal

  • The plural form for "nucleus" is "NUCLEI"

  • @dilkepyar88 way to wait until the last day to take it slacker!............so am i. haha!

  • i agree :-) i love your videos... helps me understand a lot

  • I wish you did this a year ago...but please keep making them, especially OChem! I swear I'll buy a few of your vids, just make them asap. I need them for the mcat.

  • @dawance88 when are u taking ur test? im taking it on september 11! eekkk.... goodluck

  • @dilkepyar86 Already took it, sept 3! Good luck man.

  • @dawance88 me too lol. mcat

  • @dawance88 Ummm... he doesn't sell his videos...

  • @dawance88 Does he really have video or ur just joking??

  • @ranoooosha He has a ton of videos all for free. Visit his site. Just google Khanacademy. Good luck!

  • You are the man Khan! Thank you for doing organic chemistry videos. I hope you continue!

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