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For the Ketone - H+ reaction in the last example, you can draw the resonance structure and find it's more stable for the positive charge to be at the carbon and have 2 lone pairs on O, making O neutral and C (which is less electronegative) carry the positive charge.
See @kenzo_254 You're totally right ! but it is the way of representation that the Fluoride had 7e- than the 1 extra e- came that's what the negative sign indicating and since extra electron came it formed lone pair with the 7th electron simple !!!!!
Someone help please! I need to know what topic I can find to help me understand this change of charges stuff like how carbon in the resonance structure of that ketone molecule has a positive charge and why a molecule like OH will be negatively charged.
because the oxygen is using one of its pair of electrons to form a covalent coordinated bond, so technically, the oxygen is "losing" (just sharing its electrons) with the electrophile
It's just a definition of acid and base There are other definition for acids and base such as: Arrhenius acid: produces H+ in solution Arrhenius base: produces OH-(hydroxide) in solution There is also the bronstead-lowry definition of acid and base but I'll be going off the point so Acorrding to the Lewis definition of an acid: they are electron pair acceptor, this is the reason why they are called electrophiles because they are normally cation, meaning they have less electrons so they accept the electron pair And for Lewis base definition: they are electron pair donars, they donate their electrons to the Lewis acid, this is the reason why they are called neutrophiles, because they are normally anion meaning they are electron rich, so they can give up their electrons and donate it
Answer to this question is really simple since the Carbon atom as the deficiency of the electron density (Positive charge) as per the definition........ simple !
see ! that's really simple as the video suggested depending on the condition the ketone can behave as both electrophile or nucleophile and since video also mentioned that the nucleophile is the lewis base and the electrophile is the lewis acid so, yes you may consider it as base or nucleophile !
The only problem with black background is I'm always distracted by the FACE I can see in it 😀😀😀 By the way ........ Really helpful thankssss ❤️❤️❤️❤️❤️
Not necessarily they sometimes have positive charges...like in oxyhalo acids HOF(fluorine has +1 charge) but they are unstable....they grab an electron as soon as possible
it is neutral but that doesn't mean it cannot gain another one just like us human we will eat till the food reach our oesphagus but we always keep a room for desert if they give you you'll eat and if they don't you're okay cause you're already full
No, because since nucleophiles have electrons to give, they're originally negative due to the electrons' negative charge. When they do give those electrons away, they become positive in the products.
Nucleophile= nucleus loving. Keep in mind that nuclei always contain protons (which are positively charged). And if nucleophiles are proton/nucleus loving(as their name suggests), it is implied that they *themselves* are negatively charged(because opposite charges attract) Hope this helps
Answer to such question is quite simple see boron has only 3 valence electron and it bond with the 3 hydrogen atom and despite of being electron deficient molecule such molecule do exists so as i mentioned it is a electron deficient then , wouldn't it be considered as the nucleophile You think ?
Us bro us...need to complete 11th syllabus before coaching starts 12th one... Pura saal padhai nahi ki hai aur ab realize ho raha hai ki 11th wala complete nahi kiya to 12th ka bhi pura syllabus = backlog ho jayega😢
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learned more from this 6 minute video about organic chemistry than I have in 20 plus hours of class time, great work!
why are you reading in america then
@@Anish-IITP what?
Am batu bust this nut if you talk
My face when studying organic chemistry at 3:27
AHAHAHHAHAHAHAHAAHAHAHAHHA
Hate this, so dumb ahhh! I want to go into engineering, why I have to learn dis!!!
@@aunmaqsood3129 Oof same but I wanted to be in Biology :((
Creative is very good
@@aunmaqsood3129 one of the main engineering concepts is alsp chemistry
here because i have a chem exam this week and your voice is really smooth so makes it easier to study
2 reasons why I subscribed:
- super helpful and informative
- *tutor sounds like Jae from Day6*
who is else studying for exam lol
Nust entry test
Every one actually
Me
Papa Biology same😭
Yes, the exam of life where passing or failing can mean the difference between finding a cure for cancer or not.
Thank you, thank you and thank you SO SO much! I understand everything so much better with your videos, makes me believe I can actually pass my exam!
For the Ketone - H+ reaction in the last example, you can draw the resonance structure and find it's more stable for the positive charge to be at the carbon and have 2 lone pairs on O, making O neutral and C (which is less electronegative) carry the positive charge.
Sir the way you explained made all my doubts so clear... thank you
THIS VIDEO DESERVES MORE VIEWS AND COMMENTS
powerful video , very precise and informative , I am always inspired, whenever, I visit your channel, your understanding is exceptional sir
As a revisiting fan, I can attest
I loved organic chemistry, but this concept gave me headache for 6 months! But after 6 minutes, easy as pie
who all thinks he is the one of the best teachers in the world?
understood really well.😎
🙋♀️
Also because he teaches not only a variety of topics, but also subjects and that too really really well...
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I love your videos, thank you very much, very helpful. You explain really good.
such videos are much more useful than teacher's explanation👍
ur videos r the only reason i havent dropped yet
Good luck every one we got it
Message to the person watching this : Your Exams are happening tomorrow .
Im 13 years old, and you really helped me with understanding this lol.
What are you doing studying this at 13 😮
@@navjotsingh2251 scibowl
Thanks. It was really helpful. Before this video I was struggling to understand thi
In 3:05 , why do you draw fluoride ion with 8 electrons and a negative charge? Why not draw it with 7 electrons or is there something I'm missing?
See @kenzo_254 You're totally right !
but it is the way of representation that the Fluoride had 7e- than the 1 extra e- came that's what the negative sign indicating and since extra electron came it formed lone pair with the 7th electron
simple !!!!!
Listening to this on the drive to the exam
+1🙂😂😂
Someone help please!
I need to know what topic I can find to help me understand this change of charges stuff like how carbon in the resonance structure of that ketone molecule has a positive charge and why a molecule like OH will be negatively charged.
my last year in senior year, chemistry still got me
Thanks Mark Wahlberg
ua-cam.com/video/tVm8zewqfcU/v-deo.html plz subscribe to my channel also
I really have a mock in 30 minutes.
Hi! Great video. But why does the oxygen become positive when it has one single bond and one double bond?
because the oxygen is using one of its pair of electrons to form a covalent coordinated bond, so technically, the oxygen is "losing" (just sharing its electrons) with the electrophile
Diego Velazquez not all heroes wear capes, thanks
1:10 how in the hell is ch3 electrophile
Isnit it nueclophile with a lone pair
Bro i am confused
It’s a carbocation (CH3+) and with a positive charge being an electron deficiency, it’s an electrophile
I still don't understand
😂😂😂😂 I had to return to the start of the video a million times... At least I'm not the only one
studying for the ACS orgo exam and could not remember this for the life of me
Thank you sir.Its very helpful
1:38 Basically a Lewis Base?
Was that done on purpose? 👀
No
You are ever my best teacher
powerful 💥👏👏
1:38
What do u mean by Loose acid & base ?
*Lewis Acid
It's just a definition of acid and base
There are other definition for acids and base such as:
Arrhenius acid: produces H+ in solution
Arrhenius base: produces OH-(hydroxide) in solution
There is also the bronstead-lowry definition of acid and base but I'll be going off the point so
Acorrding to the Lewis definition of an acid: they are electron pair acceptor, this is the reason why they are called electrophiles because they are normally cation, meaning they have less electrons so they accept the electron pair
And for Lewis base definition: they are electron pair donars, they donate their electrons to the Lewis acid, this is the reason why they are called neutrophiles, because they are normally anion meaning they are electron rich, so they can give up their electrons and donate it
Answer to this question is really simple since the Carbon atom as the deficiency of the electron density (Positive charge) as per the definition........
simple !
Still studying this until today
2:42 Does the oxygen form a dative bond?
Yes it does
@@limmuquan4796 thank you
THANK YOU, YOU ARE THE BEST!! 💕
Do you have a video that could help me understand why liquid children's aspirin cannot be made?
Anyone?
Ale mart you could make it yourself. Blend aspirin with juice
eric yam Thank you for your answer, but he said that there is a chemical reason why it can't be made. 🤔
Ale mart why dont you search on google.
Me 6yrs later 😩
You're the best man
Thankyou very much 🙇
At 6:30, wouldn’t the keytone be a base not nucleophile or both?
Yh it's a nucleophile when it's reacting with an acid, and an electrophile when reacting with a base
its ketone
see ! that's really simple as the video suggested depending on the condition the ketone can behave as both electrophile or nucleophile and since
video also mentioned that the nucleophile is the lewis base and the electrophile is the lewis acid
so, yes you may consider it as base or nucleophile !
I have chm 211 today😭😭 that is why I am watching this
بارك الله فيك و الله يرحك والديك
يعقوب عامر فهمت؟😓
فهمني مافهمته
@@Aa_a-pl9ei
نعم 😅
كيف يعني هوا كل شي موضح 😅
Which one is more reactive electrophiles or nucleophile ?
Thank you
the nucleophile atom will attack the electrophile, so the nucleophile is more reactive
Did you know the answer?
this man is the best shame , his videos has been very helpful lately. only if he could show us his face
why do u need to see his face how does that help u with chemistry? just imagine him as an unknown, omniscient chemistry god
I love u bro you save me so much
you're great and help me A lot thank you so much
The only problem with black background is I'm always distracted by the FACE I can see in it 😀😀😀
By the way ........ Really helpful thankssss ❤️❤️❤️❤️❤️
God bless you 🙏🙏🙏
I’m seriously not ready
Are halogens always nucleophilic?
Not necessarily they sometimes have positive charges...like in oxyhalo acids
HOF(fluorine has +1 charge) but they are unstable....they grab an electron as soon as possible
Omg thank you you are the best
Helpful !
am i only one who learns organic chemistry for fun (and unabomber things you know)
definetly the only one
Uh huh yes “the 1” ✨👍🏻
I'm studying this during exam.
Thank you, sir thankkk you sooo much
Thank you (Thu 17 Dec 2020, 4:26)
Sir is Na+an electiophile pls clarify
Yes it is because it’s a positive reagent
Thank you
Excellent
Thanks 💚 from
🌱
I'm studying this for a lab note I'm making.
if something is neutral why would it want to gain or give up electrons. This doesn't make sense at all.
Yeah, about the boron becoming negative..
I don't get..
it is neutral but that doesn't mean it cannot gain another one just like us human we will eat till the food reach our oesphagus but we always keep a room for desert if they give you you'll eat and if they don't you're okay cause you're already full
really thhhanks
Wait why is the O staying with a double bond when the hydrogen is added? Why doesn't it become a hydroxyl group?
Because the oxygen donated one lone pair of electrons to form a covalent bond
The double bond has nothing to do with this
Thanks
Sir but nucleophiles must be positive because they are RELEASING electron(negative charge).Please please please explain it to me.
No, because since nucleophiles have electrons to give, they're originally negative due to the electrons' negative charge. When they do give those electrons away, they become positive in the products.
Nucleophile= nucleus loving. Keep in mind that nuclei always contain protons (which are positively charged). And if nucleophiles are proton/nucleus loving(as their name suggests), it is implied that they *themselves* are negatively charged(because opposite charges attract)
Hope this helps
@@MaulikSrivastava thnx bur already given my exams and secured 97%.
Just wondering what your job is now lol
What about paedophiles?
eric yam 😂😂😂😂
Examples include:
Yttrium, Oxygen and Uranium
i liked it sir
شكرا لكم
Sir please post Duma s nitrogen basis problems
Got my AH Chemistry exam tomorrow :/
Connor McGown how’d you do?
hope you did good lmao
I have chem 221 and I’m here😭
who's here for jee 2025
Wouldn't BH3 have a lone pair, so it would act as a nucleophile. Like NH3?
Um no, boron only has 3 valence electrons which are all used in bonding with the hydrogen atoms so it has no lone pair
BH3 is a electron deficient molecule which acts as a Lewis acid/electrophile
Answer to such question is quite simple
see boron has only 3 valence electron and it bond with the 3 hydrogen atom and despite of being electron deficient molecule such molecule do exists
so as i mentioned it is a electron deficient then , wouldn't it be considered as the nucleophile
You think ?
Came from Labster online class lol
شكرا thankyou
Who is studying this because he wants to complete it in coaching
Us bro us...need to complete 11th syllabus before coaching starts 12th one...
Pura saal padhai nahi ki hai aur ab realize ho raha hai ki 11th wala complete nahi kiya to 12th ka bhi pura syllabus = backlog ho jayega😢
My mom taught me that if I don’t have anything good to say that I shouldn’t say it, so I won’t say it.
Bruh that's sad also u spelled "taught" wrong
wraithM17 fixed!
POV: studying for exam😂🙈
اختبار 109 كيم لايك لول
i love you
Data mumutwe nai mixer
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Hmmm 👇
Exam is on
Sok inggris bapak ini kurasa🤣
You should make a more understandable video.
Okshen
تاج وعلراسي🇮🇶
Thanks
thank you