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Hi there. For ranking the order of Lewis acidity, should the order be B(CF3)3 > B(CH2CH3)3 > B(OME)3? CF3 group should be strongly deactivating and OMe is a stronger activating group than Ch2ch3 group. Thank you
I know I’m just speaking for myself but I appreciate you doing these videos at the perfect time as im studying for the last 2 chem2 exams. You are always my go to
There is absolutely NO REASON for you to be this awesome and kind to us plebes, but yet here you are...saving the careers of Chemistry students. Thank you so much, and keep doing what you do!
My instructor argued that water is amphoteric under the Bronsted-Lowrey definition and that water can only act as a Lewis base NOT a Lewis acid. The justification for this is due to the inability for water to accept another electron pair because of its full octet. In order for water to do so, it would have to enlist another covalent bond. Just in case anyone was curious...
@@pallavinavin4988 It does because oxygen has such a strong electronegative feature, it will pull the electrons from the hydrogen closer to itself, creating a dipole charge, meaning the positive end of H can accept electrons
Can you please explain how I should know the number of dots written on a substance? (tf are they btw?) And also, Can you explain this theory to me? I'm 15 and my poor braincells can't understand a thing
Can you please explain how I should know the number of dots written on a substance? (tf are they btw?) And also, can you explain this theory to me? I'm 15 and my poor braincells can't understand a thing
@@mjoyandfun8535 they are basically the number of electrons in the outermost shell of the atom. (you can get to know how many of them are in each atom by learning periodic table. like carbons atomic number is 6. then its electronic configuration in its respective shells would be like 2,4(i.e 2 electrons in 1st shell and 4 in the outermost). so now you have to make a total of 4 dots on a carbon atom no matter what ( two dots join together to form a bond (that looks like a line ) . the electrons left (not used in bonding)are called lone pairs(the two that you wanted to know the meaning of if im not wrong ).(if you know about octets,etc i think youll understand what i said).
At 3:29, why does the FeCl3 accept a pair of electrons from a Cl-. Maybe I'm getting it wrong but my question is how can it accept a pair of electrons when all it's 3 electrons are bonded with those of chlorine?
Cause while bond formation 1 e of the new bond formed remains with O and the other goes to Zn. In simple terms, O has one of the electrons of the pairs donated for bond formation. And that's why O has 1+ charge and Zn has 1- charge.
i feel like i am missing something from my foundation chem because its been so long but... for example... when in the 3rd example when Oxygen as nucleophile attacks the Zn, why isn't an arrow also draw from Zn-Cl bond to the Cl. In other words, why doesn't Cl come off??
zn is electron deficient(partially positively charged ) in zncl2 and so zn forms another bond with oxygen ... but cl is not as electronegative as O or F so thts y it doesnt come off with the electron ...
@@FBWUniverseMode So in ZnCL2. The chlorine atoms are very electronegative (meaning they attract the electrons towards themselves in the Zn-Cl bond), due to this the zinc atom has an electron deficiency(meaning it needs electrons to complete its valance shell). So the chlorine atom has a negative charge and the zinc atom has a positive charge... When we dissolve ZnCl2 in water. Zn will form a bond with Oxygen of H2O to compensate its deficiency. Oxygen will share two of its electrons with zinc, so zinc forms a bond with oxygen. The bonds between chlorine and zinc dont break because ZnCl2 is an ionic compound and ionic bonds are very strong
If Lewis acids can accept pair of electron then why they have positive charge??! as well as bases why do they have negative charge since they can donate pair of electron?! i don't get it
You are talking about before they actually exchange electrons with each other to become conjugate base/acid. Lewis acids have positive charge because they don’t have any electrons yet, that’s why they are electron acceptors, they have the ability to have more electrons due to their positive charge. Once they do accept the electron, the positive charge goes away, and the charge becomes more negative due to the electro negativity, this conjugate base. Vice verse with Lewis bases, they have a negative charge because of the electrons they are carrying. Once they donate those electrons, the negative charge is removed, thus they are conjugate acids. I think what you are trying to understand is electronegativity. Electrons are known for having a negative charge. If you can understand that, you’re good.
I don't know exactly, actually. Zn has empty orbitals 4p,4d,4f , so according to these orbitals max 15 pair of electrons it can accept???? I do not know if it is correct or not.
@@bsubiology1828 Do you have a good curriculum for chemistry to study from zero...I think that I have a lot of gaps in my learning o-chemistry and biochemistry trip. I want to be good in foundmental
@@haseeb4608 if you don't mind I have this last question, shouldn't Lewis acid and Lewis base just form a coordinate covalent bond ( as there is only Lewis base giving electrons and the Lewis acid is just simply taking those).
@@Kajal-ro8nl I’ve never studied those so I don’t know. Maybe it’s possible for certain reactions in higher level chemistry. At the introductory level this reaction is sufficient
Can u plz tell me how cl- is a lewis base. As per the definition lewis base are e- pair donors if it only donate its one e- it will become stable then why on the earth it will donate its other e- it will become cl+ stability is disturbed
Hey there, so here is your answer; Cl- is stable than Cl as Cl- has its octet complete. And basically Cl- does not give 2 e-, it shares its 2 e-, forming a dative bond. I hope, this answers your question.
No, NH2- is a Lewis base, not an acid. Lewis acids are electron acceptors, while Lewis bases are electron donors. NH2- is electron-rich because of its negative charge.
I'd be more interested to know why ZnCl2 doesn't dissolve in the water... But as to why it doesn't form a bond with only the O of the H2O, splitting a molecule takes more energy than this reaction, which is energetically favourable for both molecules so it is not very logical for them to do something else.
@@FBWUniverseMode "Today class, we are going to discuss Lewis acids and bases, remembering that Lewis viewed these two in terms of accepting or donating electrons." There, 8 seconds. Done.
@@benebutterbean2737 loll yeah that's one thing I don't like in his videos, they seem flat because you have to give us the rule then show us the way, he always keeps me confused if I don't already have an idea on the topic.
The accepted standard of fluoride is only about 0.4-0.7 ppm in mineral/tap water and toothpastes; and the company can be held accountable if they exceed this amount. It doesnt have as much of an effect since the concentrations are too low.. however excessive brushing, putting too much toothpaste and overhydratiom can have adverse effects :D
But how can aluminium bond with 3 broms if it has only one lone eletrone ? Eletrone configuration is 1s2 2s2 2p6 3s2 3p1. 3p2 there is only lone electrone.
Guys, can somebody please explain how I should know the number of dots written on a substance? (tf are they btw?) And also, can somebody explain this theory to me? I'm 15 and my poor braincells can't understand a thing
Organic Chemistry PDF Worksheets: www.video-tutor.net/orgo-chem.html
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Hi there. For ranking the order of Lewis acidity, should the order be B(CF3)3 > B(CH2CH3)3 > B(OME)3? CF3 group should be strongly deactivating and OMe is a stronger activating group than Ch2ch3 group. Thank you
Can you translate this video to Arabic ?
Why doesn't a double bond form between h2o and zncl2? Wouldn't zinc gain 8 e then and be more stable?
I love this guys voice it's just so perfect
its an asmr basically
I am agree with you
So relaxing
Ya too calm and energetic...
He sounds like phoebe’s brother frank jr in friends
I love his voice and the way he explains the concepts, you won't have a question at all
I know I’m just speaking for myself but I appreciate you doing these videos at the perfect time as im studying for the last 2 chem2 exams. You are always my go to
What did u do on your chemistry exam 4 years ago?
WHAT DID YOU DO IN YOUR CHEMISTRY EXAMS 5 YEARS AGO ?
what did you do your chemistry exam 6 years ago?
There is absolutely NO REASON for you to be this awesome and kind to us plebes, but yet here you are...saving the careers of Chemistry students. Thank you so much, and keep doing what you do!
I hope every dream this man has comes true
You are greater than chemistry book itself 💯%
not to be weird or anything but his voice is so calming and also he’s an excellent teacher 😭
My instructor argued that water is amphoteric under the Bronsted-Lowrey definition and that water can only act as a Lewis base NOT a Lewis acid. The justification for this is due to the inability for water to accept another electron pair because of its full octet. In order for water to do so, it would have to enlist another covalent bond. Just in case anyone was curious...
But Hydronium Ion (H3O+)is the Lewis Acid of Water right?
Water is amphoteric means it can act as an acid and base.
@@AnjolaAkinsoyinuyes
@@tawhidchowdhury3107 that's a a bronsted acids not Lewis acids, as they donate a proton H+ ion, but not accept a electron pair
@@pallavinavin4988 It does because oxygen has such a strong electronegative feature, it will pull the electrons from the hydrogen closer to itself, creating a dipole charge, meaning the positive end of H can accept electrons
OMG, this not only helps my acid and base but also organic chem...
I came here while reading organic chemistry haha
Of course... Organic Chem IS all about acids bases nucleophile and electrophiles afterall
@@srikarvundavalli5934 🙋🏼♀️
Can you please explain how I should know the number of dots written on a substance? (tf are they btw?) And also, Can you explain this theory to me? I'm 15 and my poor braincells can't understand a thing
@@mjoyandfun8535 they are Lone pair electrons,its the electrons left after an atom uses its valence electrons to form bonds
THANK YOU SO SO SOMUCH! YOU ARE THE BEST TEACHER IVE COME ACROSS! ANYTHING CHEM BASED, YOUR THE MAN ALWAYS!
Can you please explain how I should know the number of dots written on a substance? (tf are they btw?) And also, can you explain this theory to me? I'm 15 and my poor braincells can't understand a thing
@@mjoyandfun8535 they are basically the number of electrons in the outermost shell of the atom. (you can get to know how many of them are in each atom by learning periodic table. like carbons atomic number is 6. then its electronic configuration in its respective shells would be like 2,4(i.e 2 electrons in 1st shell and 4 in the outermost). so now you have to make a total of 4 dots on a carbon atom no matter what ( two dots join together to form a bond (that looks like a line ) . the electrons left (not used in bonding)are called lone pairs(the two that you wanted to know the meaning of if im not wrong ).(if you know about octets,etc i think youll understand what i said).
Aww such a soothing voice🥰
The moment I clicked on the video and as it started, this voice clicked in my mind and took my attention
Thanks bro... Love from India ❤️
Hey what you doin now?
I dont know why....but before even watching the video .....I always hit like on your video FIRST ...!!!!!!!!!! BEST EVER
Thanks so much man. I don't really know how to literally thank you
What a wonderful Guy he is
I wish i knew about this page before my first exam
Thank you (Thu 17 Dec 2020, 4:08 AM)
Perfect
The bases "We still have love to give"
The acids "Were young dumb and broke"
Do you HAVE to draw the structures in order to identify a reaction as a Lewis acid-base reaction, or is there an easier or faster method???
Well if you can just think about if the compound can donate/accept a electron pair and then determine if it is a L.A./L.B.
Depending upon the valence electrons 👌🏻👍 is much faster
@@suhas1381 How?
Do you have any videos about drawing conjugate acids and bases when there is a given acid/base skeletal structure?
Yes
@@cummiyo-un9mcthat was a very quick reply. Not like the guy has already done whatever course he was doing 3 or 4 years ago
@@aryatadonkey6944 bro might've kids and a family right now,
At 3:29, why does the FeCl3 accept a pair of electrons from a Cl-. Maybe I'm getting it wrong but my question is how can it accept a pair of electrons when all it's 3 electrons are bonded with those of chlorine?
My question exactly
Hey wtf
Fe has to complete its octet
In FeCl3 it has 3 bonds which means 6e-
Now to complete octet it needs two more
So it gets a pair again....
@user-mi2yy3gp5h...thanks, I now get it
You're a savior
Thanks alot
You saved me ❤
thank you sooo much !!!!!! finally understood it
Thank you for the video sir.
Bro you are a live saver!
i love you so much you you clear my confusion in everything
Awesome video, thank you a lot dude!
Well explanation
Thank you ❤
great video! I just wanted point out that the arrows indicate the movement of electrons not the atom as a whole
Why you are so good?
At 4:45, why won't it be ZnCl2(-2 charge)--H2O(+2 charge)
Pls reply.
i was wondering the same thing
Cause while bond formation 1 e of the new bond formed remains with O and the other goes to Zn.
In simple terms, O has one of the electrons of the pairs donated for bond formation. And that's why O has 1+ charge and Zn has 1- charge.
This is very good, thanks
Thank you so much 🥺❤️
Can u show us pls the how the negative and positive sign kept
THANK YOU I LOVE YOU
What does JG mean???
In his channel photo??
I know Im like 1 year late! JG is for Julius Gonzales
i feel like i am missing something from my foundation chem because its been so long but... for example... when in the 3rd example when Oxygen as nucleophile attacks the Zn, why isn't an arrow also draw from Zn-Cl bond to the Cl. In other words, why doesn't Cl come off??
zn is electron deficient(partially positively charged ) in zncl2 and so zn forms another bond with oxygen ... but cl is not as electronegative as O or F so thts y it doesnt come off with the electron ...
@@abd_mat8869 please can you put it in other words? I don't get it
@@FBWUniverseMode So in ZnCL2. The chlorine atoms are very electronegative (meaning they attract the electrons towards themselves in the Zn-Cl bond), due to this the zinc atom has an electron deficiency(meaning it needs electrons to complete its valance shell). So the chlorine atom has a negative charge and the zinc atom has a positive charge... When we dissolve ZnCl2 in water. Zn will form a bond with Oxygen of H2O to compensate its deficiency. Oxygen will share two of its electrons with zinc, so zinc forms a bond with oxygen.
The bonds between chlorine and zinc dont break because ZnCl2 is an ionic compound and ionic bonds are very strong
Hope this helped you
@@abd_mat8869 THANKS ALOTTT
I dont get it. How we define weaker lewis base??
Can acid base reaction at the same time also be a redox reaction?
evan aw
Of course
thankx
Thank You !!!
In the 3rd example, doesn't the product convert to Zn(OH)2?
I thought so too, I'm a little confused
I'm also sooo confused, and moreover how comes we are representing the bonds in a covalent manner?
I want Lewis acid and base more video
If Lewis acids can accept pair of electron then why they have positive charge??! as well as bases why do they have negative charge since they can donate pair of electron?! i don't get it
You are talking about before they actually exchange electrons with each other to become conjugate base/acid. Lewis acids have positive charge because they don’t have any electrons yet, that’s why they are electron acceptors, they have the ability to have more electrons due to their positive charge. Once they do accept the electron, the positive charge goes away, and the charge becomes more negative due to the electro negativity, this conjugate base. Vice verse with Lewis bases, they have a negative charge because of the electrons they are carrying. Once they donate those electrons, the negative charge is removed, thus they are conjugate acids. I think what you are trying to understand is electronegativity. Electrons are known for having a negative charge. If you can understand that, you’re good.
@@attabaig6848 Thank you, now i get it ❤, btw i like your gif profile picture 😻
rxseqvartz Thanks! That’s the first time I’ve had that compliment in 7 years of making this account! 😊
Atta Baig np❤️hhhh btw I saw your video and I liked it too 😂😂😂
rxseqvartz that was my French project from 6th grade. I’m sophomore in college now! 😂😂
THANK you!
4:36 why come nobody explains us how many lone pairs can Zn accepts?
I don't know exactly, actually. Zn has empty orbitals 4p,4d,4f , so according to these orbitals max 15 pair of electrons it can accept???? I do not know if it is correct or not.
@@bsubiology1828
Do you have a good curriculum for chemistry to study from zero...I think that I have a lot of gaps in my learning o-chemistry and biochemistry trip. I want to be good in foundmental
Unfortunately , the only material that I have is not in English.
@@يحيى1990-ظ6ك Try Khan academy... They're amazing
I have this doubt, when BF3 reacts with NH3 to form product and in the product B has - ve charge and N has + ve why doesn't it form a double bond
It can't because there are no lone pairs to form the double bond
@@haseeb4608 Then will both the + ve and - ve charge will remain as it is??
@@Kajal-ro8nl correct
@@haseeb4608 if you don't mind I have this last question, shouldn't Lewis acid and Lewis base just form a coordinate covalent bond ( as there is only Lewis base giving electrons and the Lewis acid is just simply taking those).
@@Kajal-ro8nl I’ve never studied those so I don’t know. Maybe it’s possible for certain reactions in higher level chemistry. At the introductory level this reaction is sufficient
ur a legend
Thanks
Can u plz tell me how cl- is a lewis base. As per the definition lewis base are e- pair donors if it only donate its one e- it will become stable then why on the earth it will donate its other e- it will become cl+ stability is disturbed
Hey there, so here is your answer; Cl- is stable than Cl as Cl- has its octet complete. And basically Cl- does not give 2 e-, it shares its 2 e-, forming a dative bond. I hope, this answers your question.
@@ajinkyapawar8662 thanks dude
Pleas do the plus on the middle of substanc.
0:28 if an atom accept the electron than it becomes -ve charge on it ,then why are you writing +ve charge ?????🤔
He said it can accept
He did not say that it had already accepted...
Why Zinc chloride reacts with oxygen in Lewis acid mechanism
كتر خيرك يا ولدى
Thanku
Beautiful
Hahaahah
Why is nh2- a Lewis acid if it’s negayuge
can i get ur #
dog 😂😂😂🤣🤣🤣🤣 did that work out for you. I can already see the grandchildren down the road.
No, NH2- is a Lewis base, not an acid. Lewis acids are electron acceptors, while Lewis bases are electron donors. NH2- is electron-rich because of its negative charge.
His voiced told me"Don't worry, everything's gonna be ok."
I love it
How silver cation acts as Lewis acid??
How BF3 is electron deficient
The boron has an empty p orbital which can act as the lewis acid.
@@niedem or in a simplar way it is non-octet
@@manojmaheshwari4055 not simpler per se, the empty p orbital is the reason an expanded octet is possible
@@niedem tq bro
4:45
Hi, at 4:46, why won't it form ZnO + 2 Hcl?
Mooloolah28 that would probably be a combustion reaction...
I'd be more interested to know why ZnCl2 doesn't dissolve in the water... But as to why it doesn't form a bond with only the O of the H2O, splitting a molecule takes more energy than this reaction, which is energetically favourable for both molecules so it is not very logical for them to do something else.
How can l identify that this is a Lewis base and this is a Lewis acid in a reaction 😢
Is hno3 a lewis acid
Fine with the examples...WTF is a Lewis acid or base? I quit @1:19
what do u mean
@@FBWUniverseMode Could the narrator spend 15 to 20 seconds mentioning electron transfer? A 20-second orientation would go a long way.
@@benebutterbean2737 ah- i seriously don't see what you mean, I didn't expect you'd respond one year later lol
@@FBWUniverseMode "Today class, we are going to discuss Lewis acids and bases, remembering that Lewis viewed these two in terms of accepting or donating electrons." There, 8 seconds. Done.
@@benebutterbean2737 loll yeah that's one thing I don't like in his videos, they seem flat because you have to give us the rule then show us the way, he always keeps me confused if I don't already have an idea on the topic.
But how do I know what atoms can exept a pair?!?!?
those which are electron deficient
By seeing if they have their valence shell complete or not
Are there negatives? What happens if these acids are smoked or ingested, I’m asking cus I’m trying to learn about the new delta 8 thc
Did anyone notice, but at 5:11 the reversible symbol was wrong
goshh thankyouuuu
I hate reading this shit for exams
F- needs electron its self because it has 7 electrons in its valence shell then How is F- lewis base
Bruh F-
In this- indicates it has much electrons
@@PandaPanda-i4e thank you brother 🤎
Ahh so this is how it works
How dose the body keep this from happening? Any Fluoride is toxic. So tooth past and water with flouride is a crime yes?
The accepted standard of fluoride is only about 0.4-0.7 ppm in mineral/tap water and toothpastes; and the company can be held accountable if they exceed this amount. It doesnt have as much of an effect since the concentrations are too low.. however excessive brushing, putting too much toothpaste and overhydratiom can have adverse effects :D
NoiCe!
Who ever a tri formula is acid just like BF3, NH3 etc
NH3 isn’t an acid
Can you make video in hindi please 🙏🙏
Acha.. ab wo pehle Hindi sikhe TUJHE parhane ke liye... Dimaag theek hai tera??
😂
يودي يرحم والديك
But how can aluminium bond with 3 broms if it has only one lone eletrone ? Eletrone configuration is 1s2 2s2 2p6 3s2 3p1. 3p2 there is only lone electrone.
Have you learned about hybridisation yet? That would be the best place to start.
@@rwayle maybe you should learn to spell first
@@PHILLYMEDIC69 ..?
Why did you display the ionic bonds like covalent bonds(ZnCl2)????
I’m pretty sure that is wrong.
I have the same question, but I'm guessing it makes the illustrations simpler.
plz use English subtitles
i love u
Sounds like ScareTheater
Guys, can somebody please explain how I should know the number of dots written on a substance? (tf are they btw?) And also, can somebody explain this theory to me? I'm 15 and my poor braincells can't understand a thing
. Represents no. Of electrons in its valence shell
I am romantically in love with u 😵💫⭐
tr firas?
School sucks.
LAME
I dont know why....but before even watching the video .....I always hit like on your video FIRST ...!!!!!!!!!! BEST EVER
I dont know why....but before even watching the video .....I always hit like on your video FIRST ...!!!!!!!!!! BEST EVER
I dont know why....but before even watching the video .....I always hit like on your video FIRST ...!!!!!!!!!! BEST EVER
I dont know why....but before even watching the video .....I always hit like on your video FIRST ...!!!!!!!!!! BEST EVER
I dont know why....but before even watching the video .....I always hit like on your video FIRST ...!!!!!!!!!! BEST EVER
Get it at once. Why have you posted the same comment multiple times but😯
@@amarevita6870 u wrote it 6 times man!!