Hello, I’m a Hong Kong student. It is sincerely appreciated that your video no matter is organic chemistry or physics. These videos totally save my college life. There is no words to express how much thankful am I.
Good Day sir. Though I may not know you, all I can is that this your channel is the BEST OR NUMBER ONE CHANNEL when it comes to knowledge. I started watching your videos since 2017, One of the reasons I graduated from college is because of your videos and teaching which was very apt for understanding. I really want to say I'm a highly grateful man, you have touched so many lives you don't know. God bless you richly sir 😭😭. I'm highly super grateful. Please don't stop for others who like me you gave hope and motivation to try better in our academics via your video. You gave touched so many lives that you can never imagine.
okay good, im not going crazy, I was looking at my notes for like 3 mins like huh, then I settled for trick question, none of the above. and when he said C=O 1700 I instantly came to the comments lolol
@@joshuahering2041 on a real test, the professor would have to give you that one haha. You'd have good reason to pick none of the above; I think he just slipped a little when he was drawing that 1700 stretch.
Not kidding I was doing my class lectures and text book to try and understand problems like these for 4 hours and was getting no where then I watched your two 10 min videos on IR spectroscopy and understand it. THANK YOU
Oh gawd allmaitee, I really needed this 18 months ago. You my dude, I trust your videos the most. It sucks that you didn't have the time to prep this before.
For problem #4, can you clarify this. U said the peak was at 1700 however the peak was presented after 2000, roughly 2200. Is this a mistake. This confused me as I see you had the C=O in all the answers but the peak was not presented around 1600
Thank you so much for the phenomenal help you have been for me !! I do want to say though, at 6:10 you mentioned the signal at approx 2200 is a C=O stretch, how could this be so or is it that you were accidentally off on the graph? Pls clarify amazing tutor!
Good morning from South Africa...Thank you sooooo much for the content and the effort to make all of us succeed in understanding what we didn't grab during the lectures. I know- I am where I am because of YOU! Can I make a request for a subject which I'm struggling with please: Separation principles. It has distillation, gas absorption/stripping, adsorption, drying, and evaporation. Many thanks for all, Regards BAM
@@sukumarrakshit1714 Good day, do you know where I can find the information above while we wait for TOCT to make those videos ? I would appreciate it a lot. I do see some of the lectures from India but they are not in English.Regards
Number four confused me I initially chose A but then I switched to be because it looked more like something was at 1300 than at 1700. I guess spotting errors helps learn too. Maybe that was his goal.
In my IR chart, we are given three options for OH bonds. When OH is present in an alcohol, phenols (dilute solutions), it is between 3590 and 3650. When OH is present in alcohol, phenols (hydrogen bonded) it is between 3200 and 3550. When OH is present in carboxylic acids (hydrogen bonded), it is between 2500 and 3000.
Answer D is primary amine as nitrogen is directly attached to one single carbon and not 2. At first I also thought the same but then after looking at it carefully I realised it just looks so because of the ring it appears as if it's attached to 2 carbon but no just 1. It's been a year though!😂
Hi I was inspired on how you make your lesson clear and presentable but may I ask what software do you use to illustrate your discussion because I will need it to my online class I hope that you reply to comment thank you.
Video Lessons: www.video-tutor.net/organic-chemistry.html
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Hello,
I’m a Hong Kong student. It is sincerely appreciated that your video no matter is organic chemistry or physics. These videos totally save my college life. There is no words to express how much thankful am I.
I'm a pharmacy student and there is no words express how much thankful l am , I'm really understand IR spectroscopy 😍
Good Day sir. Though I may not know you, all I can is that this your channel is the BEST OR NUMBER ONE CHANNEL when it comes to knowledge. I started watching your videos since 2017, One of the reasons I graduated from college is because of your videos and teaching which was very apt for understanding. I really want to say I'm a highly grateful man, you have touched so many lives you don't know. God bless you richly sir 😭😭. I'm highly super grateful. Please don't stop for others who like me you gave hope and motivation to try better in our academics via your video. You gave touched so many lives that you can never imagine.
You took the words out of my mouth...He is an Angel to All of Us!
@@b-annm5571 YES I TOTALLY AGREE
Real organic spectro knowledge in simple way
Thanks
Thanks for the video. The C=O stretch was a little off on the fourth problem @ 5:46 . I got confused for a moment ;)
Yuh, same
me too! i was like looking for which had a triple bond around 2200
okay good, im not going crazy, I was looking at my notes for like 3 mins like huh, then I settled for trick question, none of the above. and when he said C=O 1700 I instantly came to the comments lolol
@@joshuahering2041 on a real test, the professor would have to give you that one haha. You'd have good reason to pick none of the above; I think he just slipped a little when he was drawing that 1700 stretch.
@@vanessatravieso8775 nerds
Not kidding I was doing my class lectures and text book to try and understand problems like these for 4 hours and was getting no where then I watched your two 10 min videos on IR spectroscopy and understand it. THANK YOU
Oh gawd allmaitee, I really needed this 18 months ago. You my dude, I trust your videos the most. It sucks that you didn't have the time to prep this before.
Great content, however at 6:10 the signal is between 2000cm^-1 and 3000 cm^-1, you approximated it as 1700cm^-1.
The same mistake was made at 10:02 Great content! This really broke IR spectra interpretation for me.
That was a big error.
It also confused me.
This topic is too sensitive to make such blind mistakes
i was confused as well
At least I know I’m on the right track for noticing it .
I thought I was going insane
Pls tell me your just taking a break...
I hope you are ok..
Your the only person who makes physics and chemistry easier for me to understand :'(
No one can teach this better than u... literally no one
I made a 102% on my 2nd Ochem exam that was majority IR/NMR thanks to you!
mine is in 2 days omg
I am an Arab and I understood from you very well, your explanation is really great, thank you for the video, continue ❤
Very nice❤ I learn it very well, you teach better than our teacher😂 thank u🌼🌸
I got a 96.85 ATAR thanks to this legend
This made the new content we had to learn for Chem A level a lottt more easier! Thanks!!!
For problem #4, can you clarify this. U said the peak was at 1700 however the peak was presented after 2000, roughly 2200. Is this a mistake. This confused me as I see you had the C=O in all the answers but the peak was not presented around 1600
It is a mistake
Yeah it's a mistake
I was also confused
really apreciated your video!!! i had a test tomorrow WML!!!~~
i watched this very carefully and i understand now. thank you for making it easy to follow.
Thank You So Much. I Have Never Seen Any Teacher Like You
at 6:20, I see the second curve as 2200 rather than 1700 C=O. Could you explain this? Thank you so much!
Glad i wasn’t the only one at 2200 this would be c triple bond c
Our boy dun bunked the drawing up is what happened. THE FOOL.
you need a new glasses, that's only explanation.
It is easier to understand with practice problems, thank you!
Thank you so much for the phenomenal help you have been for me !! I do want to say though, at 6:10 you mentioned the signal at approx 2200 is a C=O stretch, how could this be so or is it that you were accidentally off on the graph? Pls clarify amazing tutor!
It was a slip up
Thank you, this really helped I needed this for my test cause i'm in 6th grade. :D
In 1:37, the option D is in alkyne terminal end, why is the wavenumber not 3100-3200? He said 2200, that’s for an internal alkyne.
God Is Great, May God Bless him and you all and your families
you're the best teacher !
7:10 you put the carbonyl stretch at the wrong side of 2000.
Wow thanks I really needed this, You are great
At 9:35 how does answer choice A have an Alkane stretch? Is it because there's a CH2 bond in between the NH2 and Benzene ring?
Oh wait, is it because the Alkane stretch is sp3?
Thank you for this video! I appreciate the breakdown of how to think about IR spectra!
It's very useful.. thanks . Then in the fourth problem there is no peak like carbonyl but u said like 1700 cm^-1.
My stupid brain understood this .. thank you soooooo much ❤️❤️
I know right 😂😂😂😂
7:17 that C=O stretch isnt at 1700 cm-1??
You've painted the C=O signal as in it was 2200-2300, not 1700 :(
Good morning from South Africa...Thank you sooooo much for the content and the effort to make all of us succeed in understanding what we didn't grab during the lectures. I know- I am where I am because of YOU! Can I make a request for a subject which I'm struggling with please: Separation principles. It has distillation, gas absorption/stripping, adsorption, drying, and evaporation. Many thanks for all, Regards BAM
Good morning from India.
@@sukumarrakshit1714 Good day, do you know where I can find the information above while we wait for TOCT to make those videos ? I would appreciate it a lot. I do see some of the lectures from India but they are not in English.Regards
Incredible explanation! Well done!
THE BEST OF THE BEST❤️
Thank you 😊
Very intersting. How can we can compare two spectrum??????
Thank you for this valuable video
Number four confused me I initially chose A but then I switched to be because it looked more like something was at 1300 than at 1700. I guess spotting errors helps learn too. Maybe that was his goal.
The ether expansion or concentration could fool the spectroscopy if not calibrate ether before measuring
thank you! you've saved my life man!
@6:22 the stretch is of a nitrile functional group not carbonyl
Im confused because my IR chart says an OH bond is between 3200 and 3500. Not at 3000
In my IR chart, we are given three options for OH bonds. When OH is present in an alcohol, phenols (dilute solutions), it is between 3590 and 3650. When OH is present in alcohol, phenols (hydrogen bonded) it is between 3200 and 3550. When OH is present in carboxylic acids (hydrogen bonded), it is between 2500 and 3000.
Thanks a lot, you are the best!
Nice and informative session..😊 Thank you Sir 🤗💝
nice explanation sir,tnq
Thanks for such a helpful video:)
You got me through high school, but the real question is can you get me through college?
I would like to thank you for making learning enjoyable for me.
please make a video about budans theorem
we do appreciate.
Thank you
this really really helps me to understand tings that is not easy to understand just by reading. I am very grateful. do you feel the same way guys?
What website does he use???
In Problem 4, how can the number after 2000 its about 2200 and you say that it's 1700, there is some thing wrong
i was going to say that i think thats a mistake on his part
Shouldn't 4 be an aldehyde?
Im always doing that in my notebook thank you you help me
i owe u my tuition
Wouldn't problem 5 be A because 2 peaks on the amine mean it is a primary amine? and answer D is a secondary amine.
Answer D is primary amine as nitrogen is directly attached to one single carbon and not 2. At first I also thought the same but then after looking at it carefully I realised it just looks so because of the ring it appears as if it's attached to 2 carbon but no just 1. It's been a year though!😂
Hello there!
Wonderful class
But I do have a question.
Please what is the name of that software you are using to write that!...... please
Who else is having a CAT tomorrow and therefore to get some content here
Really it's very helpful
thank you!
Great content ❤ Thank you so much
At no. 4, the signal was at >2000
But you said 1700cm^-1
I did watch the "Introduction Video" but I'm failing to understand how do you know that which stretch is represented a certain functional group?
Please full topics of post pericyclic reactions..
Thank you ❤❤❤
yeah my professor doesnt do multiple choice for the test im about to have so hopefully i remember some of this lol.
hi sir, what online blackboard do you use?
but where is the ch2 bend on problem 2??
Can I know what kind of app you are using so I can use it too? Cause I need it for reporting please reply ༎ຶ‿༎ຶ
THANK YOU 😍😍😍👏
OH or NH ?
Hi I was inspired on how you make your lesson clear and presentable but may I ask what software do you use to illustrate your discussion because I will need it to my online class I hope that you reply to comment thank you.
Very nice videoss sir
Very helpful 🙂
Time signature of signature spectrum is better
IR spectroscopy helps to determine percentage composition how??
At 7:21 i think it should be 2200 with C triple bond C so none of them are correct
How do you make these videos? Which app do u use?
In Q4, the frequency is beyond 2000... should be around 1700
May I know what app are you using sir?
are you fearless
fearless is a youtuber and your sound is like his sound
From the graph that carbonyl is not at 1700 (question 4).
thank you very much
what are you!!!! are you alien?! you are brilliant! thank you!
Thanks man
where were you when my exam was in june👁👄👁
Where are you man, say something!!
Nice
Best one
very good
i can not understand anything. i think i have soo big problem on Organic chemistry. ( i watched IR Spectoscopy- basic introduction )
Thank admin
D in the first example... the geometry about the triple bond is not linear.... eeaurghrighghhhh
Now build a time machine
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the goat
100