IR Spectroscopy - Practice Problems

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The Organic Chemistry Tutor

Күн бұрын

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@TheOrganicChemistryTutor 7 ай бұрын

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@lubnaabdalla9925 3 ай бұрын

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@shumkaming9083 3 жыл бұрын

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.

@peybak 4 жыл бұрын

Thanks for the video. The C=O stretch was a little off on the fourth problem @ 5:46 . I got confused for a moment ;)

@chamomile3620 3 жыл бұрын

Yuh, same

@vanessatravieso8775 3 жыл бұрын

me too! i was like looking for which had a triple bond around 2200

@joshuahering2041 3 жыл бұрын

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

@peybak 3 жыл бұрын

@@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.

@Jdoug305 3 жыл бұрын

@@vanessatravieso8775 nerds

@osaretinmichaell 4 жыл бұрын

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.

@b-annm5571 4 жыл бұрын

You took the words out of my mouth...He is an Angel to All of Us!

@chamomile3620 3 жыл бұрын

@@b-annm5571 YES I TOTALLY AGREE

@ahmednaeem2009 3 жыл бұрын

Real organic spectro knowledge in simple way

@lateratolosa8124 2 жыл бұрын

Thanks

@annawaters3531 3 жыл бұрын

Great content, however at 6:10 the signal is between 2000cm^-1 and 3000 cm^-1, you approximated it as 1700cm^-1.

@akabuoguchidimma9565 3 жыл бұрын

The same mistake was made at 10:02 Great content! This really broke IR spectra interpretation for me.

@tr.buuvibrian8162 Жыл бұрын

That was a big error. It also confused me. This topic is too sensitive to make such blind mistakes

@fredinaoware1459 Жыл бұрын

i was confused as well

@minatedumo2454 Жыл бұрын

At least I know I’m on the right track for noticing it .

@bradenwhite4356 Жыл бұрын

I thought I was going insane

@Iiix78 Жыл бұрын

I'm a pharmacy student and there is no words express how much thankful l am , I'm really understand IR spectroscopy 😍

@bintousoumaoro8907 3 жыл бұрын

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

@frightenedusee5621 8 ай бұрын

It is a mistake

@barbiesax7743 7 ай бұрын

Yeah it's a mistake

@SakurabaAyane 4 жыл бұрын

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.

@jovizai4593 3 жыл бұрын

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 :'(

@user-yi1mj4iu9u Жыл бұрын

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

@gabelittlefield8890 2 жыл бұрын

I made a 102% on my 2nd Ochem exam that was majority IR/NMR thanks to you!

@reenanwa Жыл бұрын

mine is in 2 days omg

@saminanoor8094 Жыл бұрын

No one can teach this better than u... literally no one

@wingwars125 4 жыл бұрын

This made the new content we had to learn for Chem A level a lottt more easier! Thanks!!!

@trollfake9578 10 ай бұрын

You've painted the C=O signal as in it was 2200-2300, not 1700 :(

@Gymgrl12 3 жыл бұрын

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!

@MasonHatfieldLogorrhea Жыл бұрын

It was a slip up

@saiamitchaddha5525 3 жыл бұрын

God Is Great, May God Bless him and you all and your families

@kappa_kang60 3 жыл бұрын

I got a 96.85 ATAR thanks to this legend

@yoojinshin9314 4 жыл бұрын

at 6:20, I see the second curve as 2200 rather than 1700 C=O. Could you explain this? Thank you so much!

@IsabelHernandez-cm5bd 3 жыл бұрын

Glad i wasn’t the only one at 2200 this would be c triple bond c

@MrChaluliss 3 жыл бұрын

Our boy dun bunked the drawing up is what happened. THE FOOL.

@icewind7 5 ай бұрын

you need a new glasses, that's only explanation.

@directioner578 10 ай бұрын

It is easier to understand with practice problems, thank you!

@mahdimahmoudi4379 7 ай бұрын

Very nice❤ I learn it very well, you teach better than our teacher😂 thank u🌼🌸

@albert1554 3 жыл бұрын

Thank You So Much. I Have Never Seen Any Teacher Like You

@joannaenriquez488 Жыл бұрын

i watched this very carefully and i understand now. thank you for making it easy to follow.

@sundaywibs99 9 ай бұрын

really apreciated your video!!! i had a test tomorrow WML!!!~~

@fernandocruz9882 4 жыл бұрын

Wow thanks I really needed this, You are great

@aimonchok6249 2 жыл бұрын

you're the best teacher !

@celiareg3346 3 жыл бұрын

Thank you, this really helped I needed this for my test cause i'm in 6th grade. :D

@theriverglass 2 жыл бұрын

Thank you for this video! I appreciate the breakdown of how to think about IR spectra!

@saranmunian6376 4 жыл бұрын

It's very useful.. thanks . Then in the fourth problem there is no peak like carbonyl but u said like 1700 cm^-1.

@samuelwilberforce8689 6 ай бұрын

we do appreciate. Thank you

@b-annm5571 4 жыл бұрын

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 4 жыл бұрын

Good morning from India.

@b-annm5571 4 жыл бұрын

@@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

@user-gj8uj9ro9d Ай бұрын

Thank you for this valuable video

@ggroy3157 3 жыл бұрын

In Problem 4, how can the number after 2000 its about 2200 and you say that it's 1700, there is some thing wrong

@bintousoumaoro8907 3 жыл бұрын

i was going to say that i think thats a mistake on his part

@pi2745 2 жыл бұрын

My stupid brain understood this .. thank you soooooo much ❤️❤️

@sarahakomahmensah1449 4 ай бұрын

I know right 😂😂😂😂

@trentkirkwood4488 2 жыл бұрын

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.

@valentinaparedes6375 Жыл бұрын

Thanks a lot, you are the best!

@nightshiin78 4 жыл бұрын

You got me through high school, but the real question is can you get me through college?

@dolledby_anj2874 2 жыл бұрын

THE BEST OF THE BEST❤️ Thank you 😊

@charlesoffiong6963 Жыл бұрын

Incredible explanation! Well done!

@adenoorliza8259 3 жыл бұрын

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?

@ericpham8205 3 жыл бұрын

The ether expansion or concentration could fool the spectroscopy if not calibrate ether before measuring

@kibetkevin107 Жыл бұрын

Who else is having a CAT tomorrow and therefore to get some content here

@nasrinmeghla7270 2 жыл бұрын

At no. 4, the signal was at >2000 But you said 1700cm^-1

@safiyya4238 4 жыл бұрын

Thanks for such a helpful video:)

@t7salm3lm56 3 жыл бұрын

What website does he use???

@souadtebbal6414 2 жыл бұрын

Very intersting. How can we can compare two spectrum??????

@franciscoisidro3622 3 жыл бұрын

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.

@mayomikunadesokan5653 3 жыл бұрын

thank you! you've saved my life man!

@karunachourasia6084 3 жыл бұрын

nice explanation sir,tnq

@abigailbui5753 6 ай бұрын

thank you!

@avamontgomery3750 Жыл бұрын

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.

@anjalikushwaha8184 9 ай бұрын

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!😂

@Kimchi_69 Жыл бұрын

yeah my professor doesnt do multiple choice for the test im about to have so hopefully i remember some of this lol.

@areebullahmirza5579 6 ай бұрын

7:10 you put the carbonyl stretch at the wrong side of 2000.

@CATB33 4 жыл бұрын

Im always doing that in my notebook thank you you help me

@fusionrage5096 3 жыл бұрын

I would like to thank you for making learning enjoyable for me.

@tekchandthakur2551 4 жыл бұрын

Really it's very helpful

@JesusLightsYourPath 10 ай бұрын

Im confused because my IR chart says an OH bond is between 3200 and 3500. Not at 3000

@camiloacevedo7516 10 ай бұрын

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.

@ericpham8205 3 жыл бұрын

Time signature of signature spectrum is better

@ribakrappaht 2 жыл бұрын

You are like Master Oogway from Kung Fu Panda as you are Wiser and have a Calm Voice !

@aryakrishnab8361 4 жыл бұрын

Nice and informative session..😊 Thank you Sir 🤗💝

@kantconnect3626 3 жыл бұрын

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

@chrislong2603 10 ай бұрын

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?

@chrislong2603 10 ай бұрын

Oh wait, is it because the Alkane stretch is sp3?

@ramanbapir2385 3 жыл бұрын

please make a video about budans theorem

@user-up7pl7gj8i 6 ай бұрын

7:17 that C=O stretch isnt at 1700 cm-1??

@tokamostafa5022 3 жыл бұрын

Thanks man

@annikaj8021 9 ай бұрын

Shouldn't 4 be an aldehyde?

@szxnv 9 ай бұрын

i owe u my tuition

@lamaiyad9596 3 жыл бұрын

THANK YOU 😍😍😍👏

@free_learning_for_all Жыл бұрын

Great content ❤ Thank you so much

@lawrencekomane2152 2 жыл бұрын

@6:22 the stretch is of a nitrile functional group not carbonyl

@giftsadique1806 3 жыл бұрын

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?

@songohan393 2 жыл бұрын

thank you very much

@thelegendary4018 4 жыл бұрын

are you fearless fearless is a youtuber and your sound is like his sound

@elijahdamien7914 3 жыл бұрын

hi sir, what online blackboard do you use?

@windadimaramadis5034 8 ай бұрын

OH or NH ?

@yasminnabila1417 3 жыл бұрын

Nice

@nigelilagan4045 3 жыл бұрын

Can I know what kind of app you are using so I can use it too? Cause I need it for reporting please reply ༎ຶ‿༎ຶ

@s.sdobledhamaka4319 Жыл бұрын

Very helpful 🙂

@himangimanik490 3 жыл бұрын

Very nice videoss sir

@NewWesternFront Жыл бұрын

but where is the ch2 bend on problem 2??

@sap8nap 2 ай бұрын

In Q4, the frequency is beyond 2000... should be around 1700

@rahimaxonabduqodirova2687 3 жыл бұрын

what are you!!!! are you alien?! you are brilliant! thank you!

@johnvincebanjao2368 3 жыл бұрын

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.