It was Chem 122. Your videos were just what I needed. I was able to keep going back to them to review as well. It helped my comprehension tremendously. You are great at giving simple, easy to understand explanations. Thanks again. Tedie
Hey man, I don't think I remembered to thank you for helping me pass my chem class last semester. Not only did I pass, but I got a B in a class that I had been sure I was going to fail!! Thank you so much for all your help. T
AK LECTURES One question. In the reaction with water and ammonia, how do you know which one donates a hydrogen and acts as the acid? You said ammonia because it has a lone pair to donate. but H20 has two lone pairs..
Nice video, but I believe there are several places in the lecture where he says "hydride ion" but he should have said "hydrogen ion". Hydride is the ion with a negative charge, while hydrogen ion is the proton
Hey Ted, Great to hear that! I really appreciate you coming back and writing this comment. Its a really rewarding feeling to know that my videos actually helped you score well in the class! Was this a general chemistry course? - Andrey
In the first reaction HCL dissociates completely in water because it is a strong acid ,so the reaction should be in one direction HCL ---> H+ + CL- (no reversibility here)as well as NAOH--->Na+ +OH- (in water).
Your Welcome! It's really a pleasure to learn from you!I guess you took a lot of time to make these video, So said thank you it's the minimum people can do!Chemistry become so simple as the way you explain it. I took 2 minutes to wrote this message, you allowed me to save 1 hour of revisions.I don't understand why teacher are not like you!
Correct me if I'm wrong, but when you metion a Bronsted-Lowry base, wouldn't it be accepting a hydrogen ion (H+) using the lone pair of electrons from the base? I guess if you say that it's accepting a hydride( which means H(-) having two electrons already), then it wouldn't make sense that the base would be donating electrons to it.
Sorry to nit pick, Andrey, but you really shouldn't call H+ a "hydride ion." It could get confusing. H- is the hydride ion. H+ is often just called a "proton." Hydride ion chemistry is a lot less common than H+ chemistry, and high-school level students usually do not learn about it, but it's out there.
At minute 6:40,in the example of Lewis Acid. How could BF3 accept a pair of electrons from the hydrogen if H has only one electron and it is not related to any other atome.This reaction make more sens with NH3 molecule. BF3+ :NH3 --->F3B:NH3
Like the guy below, I TOO don't want to be THAT GUY.. but molecular bonding for H2O has the two lone pairs of electrons on ONE side.. to allow the 105 degrees of separation between the two hydrogen atoms. 2.5 degrees per pair of electrons and 107 degrees is normal without pairs for bent bonds. Not that big of a deal.. but that's how the charges are created to allow the bonding with the third hydrogen atom in hydronium. Otherwise.. fantastic videos. I've learned a lot from your videos. Thank you.
wait so basically, reactants in every chemical reaction have one that acts as lewis/bronsted-lowry acid and other that acts as lewis/bronsted-lowry base?
Thank you for the video. I have a question though- when the NH3 is dissolved in water(as shown in the bronsted lory concept), it DOES end up releasing OH ions, so how come it was said that the Arrhenius definition doesn't fit for NH3?
he should have drawn one arrow, because HCl is a strong acid, in case the acid or the base is weak you draw 2 arrows. and btw H2O must not be written above the arrow in this case (strong acids)
Diala Smith Theoretically, there will always be a tiny amount of non-dissociated acid regardless of what they teach you in school :-) its just the nature of the attractive forces between positively charged hydrogen ions and negatively charged chloride ions. But I should of made the arrow going backwards much smaller than the forward arrow. Usually they just omit the backward arrow to demonstrate how low the rate is.
Actually this topic was in our syllabus in grade 11 (in India) but I was still confused between the three. So now one year later I'm watching this and it really helped. Thanks 👍🏻✨
I am slightly confused by you saying, "donate a Hydride ion." I understand Bronsted-Lowrey acid as donation of a proton, and subsequent association of the Proton to a H2O. Maybe I am just playing a game of semantics here, but you may confuse someone.
Tyler Heers You're absolutely correct. I should of used hydrogen ion instead of hydride, the two things are entirely different. Sorry for the confusion Tyler.
you're right , but its about the electronic configuration, so hydrogen can accept a pair of electrons in his s level. Try to use the next reaction ClH + H2O > >
Not trying to be "that guy" -- but wanted to share just in case someone was confused about anything here: In dealing with the Brønsted-Lowry definitions, at the bottom where there is the molecule of HNO3, the N should have a +1 charge (overall charge on the molecule is 0); on the right side of the equilibrium, the O at the bottom of the NO3 molecule should have a -1 charge (just as the right O does -- exact same thing) and the central atom N should have (like before) a +1 charge (overall charge is -1). Again -- realllllly not trying to be "that guy." Where is your accent from?
No worries Zach, I was a bit sloppy with that part. You're correct though, central nitrogen should carry a positive charge on both sides of the reaction and the oxygen on the right side should carry a negative charge. Cheers.
umm sorry, i dont quite get what you mean. i mean i understand the part where the center should carry a positive charge. But will it affect any of those that "that guy" has explained? thanks
It was Chem 122. Your videos were just what I needed. I was able to keep going back to them to review as well. It helped my comprehension tremendously. You are great at giving simple, easy to understand explanations. Thanks again. Tedie
Don't know if he is gonna teach me chemistry or beat me up ?
HAHAHAHA
its a joke
His passionate tone of voice rlly cemented the info in my brain though.
Casual Cadaver looool
@@MS-zv9cn ikr me too
This is an extremely helpful video that quickly summarizes an hour long lecture. Thank you!
Can I just say that you literally just saved my life in less that 10 minutes ! Thank you so much for this video, short sweet and to the point !
You're welcome! Happy to hear it helped you with your project! :)
Hey man, I don't think I remembered to thank you for helping me pass my chem class last semester. Not only did I pass, but I got a B in a class that I had been sure I was going to fail!! Thank you so much for all your help. T
thanks! lets go on a date
AK LECTURES One question. In the reaction with water and ammonia, how do you know which one donates a hydrogen and acts as the acid? You said ammonia because it has a lone pair to donate. but H20 has two lone pairs..
Lmaooo felt honey 😂
m indian and watched ur video it has solved all my doubts this was really helpful thank u
Nice video, but I believe there are several places in the lecture where he says "hydride ion" but he should have said "hydrogen ion". Hydride is the ion with a negative charge, while hydrogen ion is the proton
Basically, yes. As long as a cation contains an empty orbital that can interact with a pair of electrons, it can act as a lewis acid.
Hey Ted,
Great to hear that! I really appreciate you coming back and writing this comment. Its a really rewarding feeling to know that my videos actually helped you score well in the class! Was this a general chemistry course? - Andrey
Andrey...Your lecture is nice, clear and precise talking about all types of acids and bases under one umbrella.
You are absolutely right :)
Pretty big difference between the two.
I'll correct that mistake when I reshoot the videos this summer.
Thanks for this video, My teacher tried to explain this an di had no idea what he was going on. This really helped, THANKS!
lol you're welcome ! Happy that it cleared up any confusion!
In the first reaction HCL dissociates completely in water because it is a strong acid ,so the reaction should be in one direction HCL ---> H+ + CL- (no reversibility here)as well as NAOH--->Na+ +OH- (in water).
Yeah i've got the same point to say😬
Wow, you sound super different now compared to 5 years ago. But as your voice changed, your teaching has gotten better as well.
youuare theeeeee best teacher ever!!! infinite like for what you're doing!
Thanks Mike. Appreciate that :)
Your Welcome! It's really a pleasure to learn from you!I guess you took a lot of time to make these video, So said thank you it's the minimum people can do!Chemistry become so simple as the way you explain it. I took 2 minutes to wrote this message, you allowed me to save 1 hour of revisions.I don't understand why teacher are not like you!
Great Video. This has really helped me out and now I understand what is on my chemistry quiz.
Thanks!
Andrey is the🐐
Great video. My students will have a lot of things to learn by tomorrow's meeting in class.
Glad it helped!
This really helped, got a test tomorrow! Your devilish good looks were distracting tho
lol thanks! Good luck!! Hope you ace that test :)
Correct me if I'm wrong, but when you metion a Bronsted-Lowry base, wouldn't it be accepting a hydrogen ion (H+) using the lone pair of electrons from the base? I guess if you say that it's accepting a hydride( which means H(-) having two electrons already), then it wouldn't make sense that the base would be donating electrons to it.
He already replied someone that he did a mistake there n will correct it in his next shoot... So you're right
Thank you for your teaching skills! Much Appreciated
Why can't the world teach like this.
Merusha Mukherjee u are so cute 😍😂
Thanks for this. Really helped me a lot.
You're welcome Iana!
In Bronsted-Lowry, water serves as a buffer, I never really considered that before.
Love from India ..!
Aligarh Muslim University!
You the goat 😎
Sorry to nit pick, Andrey, but you really shouldn't call H+ a "hydride ion." It could get confusing. H- is the hydride ion. H+ is often just called a "proton." Hydride ion chemistry is a lot less common than H+ chemistry, and high-school level students usually do not learn about it, but it's out there.
This is really helpful thank you.
hera siddiqi welcome
At minute 6:40,in the example of Lewis Acid. How could BF3 accept a pair of electrons from the hydrogen if H has only one electron and it is not related to any other atome.This reaction make more sens with NH3 molecule. BF3+ :NH3 --->F3B:NH3
Hydride is H- not H+ (A hydrogen ion, aka a proton)
I was confused ty for the clarification.
i like the way you present information! :)
Thanks Kadeem!
Bronstead proposed that H+ is as proton not an hydride ion....
Damn, you explained it even better than my chem teacher
Like the guy below, I TOO don't want to be THAT GUY.. but molecular bonding for H2O has the two lone pairs of electrons on ONE side.. to allow the 105 degrees of separation between the two hydrogen atoms.
2.5 degrees per pair of electrons and 107 degrees is normal without pairs for bent bonds.
Not that big of a deal.. but that's how the charges are created to allow the bonding with the third hydrogen atom in hydronium.
Otherwise.. fantastic videos. I've learned a lot from your videos. Thank you.
Good Video! Thanks
I think you meant at 6:24 that Boron has 3 F's (and not 3 H's as you said).
Im finding it hard to make out what you called the bond type when a covalent bond is formed with both electrons coming from one molecule.
Thanks sir... Great explanation
This is badassed!
wait so basically, reactants in every chemical reaction have one that acts as lewis/bronsted-lowry acid and other that acts as lewis/bronsted-lowry base?
Can't focus. Too attractive.
Thank you for the video.
I have a question though- when the NH3 is dissolved in water(as shown in the bronsted lory concept), it DOES end up releasing OH ions, so how come it was said that the Arrhenius definition doesn't fit for NH3?
Thank you so much but i have a question why in the reaction you draw two arrows instead of one arrow ??
he should have drawn one arrow, because HCl is a strong acid, in case the acid or the base is weak you draw 2 arrows.
and btw H2O must not be written above the arrow in this case (strong acids)
Diala Smith Theoretically, there will always be a tiny amount of non-dissociated acid regardless of what they teach you in school :-) its just the nature of the attractive forces between positively charged hydrogen ions and negatively charged chloride ions. But I should of made the arrow going backwards much smaller than the forward arrow. Usually they just omit the backward arrow to demonstrate how low the rate is.
Oh! Good to know.😊
You rock it Sir
It took me a long time until I found this video
Thanks for the good video
You're welcome Nicholas!
You're saving my life for my chem test tomorrow!
hah thats awesome !! make sure you check out my website for a better organized playlist! :)
+AK LECTURES I will
Good luck tomorrow!
how can water be acid or base or what makes it act as an acid sometimes or base sometimes ?
Codo Sacho Water will pretty much act as a base under very acidic conditions and as an acid under very basic conditions.
AK LECTURES Thank you :)
water is amphoteric:acts as acid and base both
I'm distracted by your handsomeness. I've learned nothing
SERIOUSLY
Looool
Wow i didnt know gays existed 3 years ago
🤣🤣
it is to good but I want to ask how does water act in lewis arhenious and lowry bronsted theories
Thanx sir very useful for us good job
The Rambo of the white board has spoken.
hey i have a question. so any cation is a lewis acid? thank you for the post!
Hydride is H- and not H+.
Yes, yes it is.
yes i too found that wrong
Are you saying quarter covalent? or coordinate covalent...
😂😂😂i cant stop ma laugh after rd the comments . btw thnx for this lecture "sir"
thank you for your help you are great.
Lior Marko You're welcome Lior !
Actually this topic was in our syllabus in grade 11 (in India) but I was still confused between the three. So now one year later I'm watching this and it really helped. Thanks 👍🏻✨
I am slightly confused by you saying, "donate a Hydride ion." I understand Bronsted-Lowrey acid as donation of a proton, and subsequent association of the Proton to a H2O. Maybe I am just playing a game of semantics here, but you may confuse someone.
Tyler Heers You're absolutely correct. I should of used hydrogen ion instead of hydride, the two things are entirely different. Sorry for the confusion Tyler.
Thank you
first rule of fight club: NEVER ABOUT FIGHT CLUB
Thaaaaaanks maan thats really helped !!
victor vance you're welcome !
great for ap chem
Thanks a lot
Sharaf alhilo you're welcome!
I cant concentrate.. too focused on his bod.
how does hydrogen have 2 electrons?
Nice video sir
last video i saw him is that his hair style changed.
hydrogen has single electron... hw is it possible to have lone pair?
you're right , but its about the electronic configuration, so hydrogen can accept a pair of electrons in his s level. Try to use the next reaction ClH + H2O > >
But, It was a good video. Thanks!
Great!!
Thanks!
hii sir
Good
help me
ok here's a video that might help
are you me?
i must go
wtf
smart and handsome a rarity!
nice
Not trying to be "that guy" -- but wanted to share just in case someone was confused about anything here:
In dealing with the Brønsted-Lowry definitions, at the bottom where there is the molecule of HNO3, the N should have a +1 charge (overall charge on the molecule is 0); on the right side of the equilibrium, the O at the bottom of the NO3 molecule should have a -1 charge (just as the right O does -- exact same thing) and the central atom N should have (like before) a +1 charge (overall charge is -1). Again -- realllllly not trying to be "that guy."
Where is your accent from?
No worries Zach, I was a bit sloppy with that part. You're correct though, central nitrogen should carry a positive charge on both sides of the reaction and the oxygen on the right side should carry a negative charge. Cheers.
umm sorry, i dont quite get what you mean. i mean i understand the part where the center should carry a positive charge. But will it affect any of those that "that guy" has explained? thanks
sideview this guy looks like Jim.....great lecture anyway
You should try in acting...handsome
bro you are getting them mixed up im like 90% sure you goofed
you could be lucifer and i wouldn’t be mad
WTH! Western peeps study too🤯
a luis miguel le falla el coco(8)! F T W
GUY" HAHAHA CUTE.