@@rickandelon9374 Hey I've been replying to older comments that say things like "I have an exam tomorrow!", and I usually reply with "How did the test go?" I thought this would be odd but not taboo. For what it's worth, I don't think anyone has taken offense to these replies so far, and it has lead to some cool conversations. Is there a general consensus that this is taboo, or do just some people think it's not a good idea?
wrealy wrealy wrealy wrealy wrealy wrealy nice video but plzz also make a video of benzene nitration and sulphonation i have problems in that, and may be others also have.
Could you add/include an orbital visualization of these processes in organic chemistry? Maybe in all (following) chemistry videos? Thank you. Keep on going.
“Do you remember the good old days when electrons could bounce all around me from double bond to double bond and I was a perfect benzene ring?” Benzene complex.
If the electrophile is a halogen, the bond can be polarised by using a Lewis acid catalyst. If the electrphilic substitution is a sulphonation, then no Lewis acid is necessary, and the proton reacts with the sulphonate anion, forming the sulphonic acid.
can u please explain last step.. to form a bond we need at least 2 electrons..isn't it?? but in the last step with single electron how a bond can be formed?? i didn't get this
Is there any situation where the negatively charged base would react with the carbocation instead of separating a Hydrogen from the ring? Or am I missing something simple?
Aromaticity needs to be restored because the system is much more thermodynamically preferable in this state. Adding onto the benzene ring (I think you are talking about nucleophilic addition) would remove aromaticity from the initial benzene system, and so the reaction would not readily occur. General rule: When you start aromatic, you should end aromatic!
well what u r thinking of..may only happen at low temperautes where kinetically controlled product is major...but on STP...thermodynamics says...aromatic compounds are extra stable...so u cannot afford to lose that aromatic character...if the product has higher energy..then why would it like to procedd forward??
This is a chemical liquid formed from natural processes and human activities derived from coal, crude oils and other by-products of oil-refining processes. It is also known as benzol, phene, coal naptha, cyclohexatriene and phenyl hydride: built from carbon and hydrogen atoms-a ring of six carbon atoms, each attached to one hydrogen. It is used in the manufacturing of organic compounds as a solvent and an intermediate.
A good video. However, when referring to resonance hybrids it is unfortunate that he talks about he talks about electrons "swishing about". Resonance hybids are intermediates in structure and do not alternate between each other as is implied by his presentation.
Electrophilic aromatic substitution? More like "Everyone should be paying you their tuition!" Thanks so much for making university-lecture quality (or even better) material together and then sharing it for free. Bless Khan Academy!
"It wants electrons really, really, really, really, REALLY bad!!" haha you are the man , thanks so much for this.
Hey 8 year old comment!
@@iSVX1103 replying to comment older than 5 years is frowned upon and is taboo. Stop doing this!
@@rickandelon9374 What do you mean by Taboo?
@@rickandelon9374 Hey I've been replying to older comments that say things like "I have an exam tomorrow!", and I usually reply with "How did the test go?" I thought this would be odd but not taboo. For what it's worth, I don't think anyone has taken offense to these replies so far, and it has lead to some cool conversations.
Is there a general consensus that this is taboo, or do just some people think it's not a good idea?
@@iSVX1103 This comment is now 4yrs old
Precise. Perfect. Nothing more. Nothing less.
The mechanisms explained in detail by The Khan Academy are a great help ! Thank u guys
I have watched all your videos. THEY ARE AWEEEEEEEEEEEEESOME. thank you.
Do you have "Nitration of benzene mechanism"?
10 yr old comment 😨😨😨
Dude!
Oo
then this guy should have mastered benzene
Bro 13yr old video 😮❤
I can't be more happier you explained it so easily like just drinking water.
ربي ما يضيع جهدنا وتعبنا ونجيب الفل مارك بالفاينل يارب ^^
10 years later, still helpful and to the point! Thank you!
13.3 years later still helps
wrealy wrealy wrealy wrealy wrealy wrealy nice video but plzz also make a video of benzene nitration and sulphonation i have problems in that, and may be others also have.
This guy should be paid my tuition fees because these videos are worth more than my in-class lectures
thanks lotttttttttt.your video has really helped me lot n it is also going to help the students of developing country like nepal................
please make nitration, sulphonation, halogenation,friedalcraft alkylation, acylation, protonation,nitrozation,diazo coupling,kolb's reaction and reimer-teimer reaction 😭😭😭
Watch physics wallah
best teaching there is :) much thanks from Turkey.
sal you are better than my chemistry teacher.......thank u so much..
I know this was a long time ago, but I was just curious how the rest of your chemistry class went.
the thing which no one could explain me . I got to learn from this video. thanks alot sir
that help me alot
Excellent... awesome..thanks a lot.😊
seriously man how can you use a mouse with that kind of accuracy. you never cease to amaze me. ps kacademy > my college
like someone already said, UR THE MAN :]
Hey 8 year old comment!
`13 years ago and still helpful ❤
Thank you so much for your great explaining 🌹🌹
Could you add/include an orbital visualization of these processes in organic chemistry? Maybe in all (following) chemistry videos? Thank you. Keep on going.
Luv you so much! Your explanation sooo clear! How talented u r!
Seriously, Khan Academy has taught me more than school and University put together :P
Thanku so much sir
Its just great... I understand it clearly
Thank you soooo much Khan!! I'm now feeling confident about my coming exam! God bless youuu xxx
Hey 8 year old comment
I know those exams were years ago, but I was curious how they went, and how your studies went after that.
I seriously love your videos. They help so much.
Thank you very much ❤
arghh khan academy, we meet again.. during this horrible period of exams and stress.
These video are amazing!!! Thank u so much from italy :)
Hey 8 year old comment!
soo good
Thank you so much!!! 😄😄😄
“Do you remember the good old days when electrons could bounce all around me from double bond to double bond and I was a perfect benzene ring?” Benzene complex.
Wonderful explanation 👍
I love his voice 😁😁
Oh my god , you are really perfect teacher ... thank you a lot 😭😭💕
nice explanation than you
Thank you sooo much. You are going to help me pass my finals!
Hey 9 year old comment!
Hey I know it's been awhile, but how did your finals go?
Ohh Bhai tu jinda hai
شكراً لك ، شرح رائع جدا
thans a lot. you are wonderful teacher.
9:45
Great videos...thank you! What program/hardware are you using to draw/record?
If the electrophile is a halogen, the bond can be polarised by using a Lewis acid catalyst. If the electrphilic substitution is a sulphonation, then no Lewis acid is necessary, and the proton reacts with the sulphonate anion, forming the sulphonic acid.
Sir please solved the problems of Peter skayes and Morrison Boyd also
Extremely helpful
Thank you ♥ شكرا ♥
.
Thank you!
Thank you kind sir
Good content! Just a suggestion, maybe speed up the drawing bits. Just feels like it's making the videos unnecessarily long.
turn the video speed up to 1.5! it helps so much
Lifesaver!!!!
thank you khan academy
can u please explain last step.. to form a bond we need at least 2 electrons..isn't it?? but in the last step with single electron how a bond can be formed?? i didn't get this
your sound is very good!!!!!!!!!!!!!
Thanks, helped me alot.
Thank you sal
Oh my goodness!! Just what I need!!!
You are stil alive🤣🤣🤣
❤️❤️ Thank you sir
Thank you but please could you post a video about arenes and acylation
Do search alak pandey and arvind tutorials too
.
This explanation is easier to understand than my boyfriend.
lmao
PLEASE make Nitration and Sufonation of Benzene video!!!! :D
Thanks❤️❤️
Still helps
In nutrition of benzene why does the electrophile attaches only to the meta position rather than ortho and para
thanks
very nice video
Is there any situation where the negatively charged base would react with the carbocation instead of separating a Hydrogen from the ring? Or am I missing something simple?
Aromaticity needs to be restored because the system is much more thermodynamically preferable in this state. Adding onto the benzene ring (I think you are talking about nucleophilic addition) would remove aromaticity from the initial benzene system, and so the reaction would not readily occur. General rule: When you start aromatic, you should end aromatic!
+Matt Hint superb response pal!
matt hint the general rule is good
well what u r thinking of..may only happen at low temperautes where kinetically controlled product is major...but on STP...thermodynamics says...aromatic compounds are extra stable...so u cannot afford to lose that aromatic character...if the product has higher energy..then why would it like to procedd forward??
great video
"Wealy wealy wealy good at getting electron"
I love you. I really, really, really, really, really, REALLY, do.
Why would the electrophile react with the benzene ring when it has a less stable base available to react with?
should have mentioned the formation of the electrophile / with the acids
instead of a base does a lewis base work to make the carbon neutral??
Alakh sir is best
Change the playback speed to 1.25x and thank me later!
This is a chemical liquid formed from natural processes and human activities derived from coal, crude oils and other by-products of oil-refining processes. It is also known as benzol, phene, coal naptha, cyclohexatriene and phenyl hydride: built from carbon and hydrogen atoms-a ring of six carbon atoms, each attached to one hydrogen. It is used in the manufacturing of organic compounds as a solvent and an intermediate.
which software do you use here
Thank you sir,so well explained.
A good video. However, when referring to resonance hybrids it is unfortunate that he talks about he talks about electrons "swishing about". Resonance hybids are intermediates in structure and do not alternate between each other as is implied by his presentation.
Electrophilic aromatic substitution? More like "Everyone should be paying you their tuition!" Thanks so much for making university-lecture quality (or even better) material together and then sharing it for free. Bless Khan Academy!
arigatou :)
Is the answer that you got the only correct answer? Can the Electrophile be added to a different carbon and the answer still be correct?
Best
watch the reaction mechanism
As president, I will make Khan Academy official. Watch the videos, pass the tests, and you're done.
you should teach teachers
Thank you Thank you :) :)
#50
convoluted process indeed
0.5, he sounds crossed
OMG, this is from ten years ago what?
❤
Its 2023 seriously💀!!
Jesus, just thinking of the name of it in English makes me get an head-hake.
wait i was looking for a glitch hop artis named Electrophile but then sience.
in the spirit of education he is using a pen/tablet device to "draw"
Jesus is on his way , he loves you and is here to give you peace , joy and love for free.
PY student at KSU? x'D
He sounds so so different in these old videos
Too much drawing combined with to uncheck erasing and changing colors and extra steps made this video not good.
Bromine is Br not B
The B is used to ambiguously represent any base, not bromine.