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Introduction to infrared spectroscopy | Spectroscopy | Organic chemistry | Khan Academy 

Khan Academy Organic Chemistry
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Basic principles of spectroscopy. Light absorption and bond vibration. Created by Jay.
Watch the next lesson: www.khanacademy.org/science/o...
Organic Chemistry on Khan Academy: Carbon can form covalent bonds with itself and other elements to create a mind-boggling array of structures. In organic chemistry, we will learn about the reactions chemists use to synthesize crazy carbon based structures, as well as the analytical methods to characterize them. We will also think about how those reactions are occurring on a molecular level with reaction mechanisms. Simply put, organic chemistry is like building with molecular Legos. Let's make some beautiful organic molecules!
About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.
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4 июл 2024

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Комментарии : 79   
@yourfuturedocburenbeiya
@yourfuturedocburenbeiya 5 лет назад
Your videos are so detailed and helpful! I wished I found these videos sooner. 😩Thank you so much!! ♥️
@Aman-tf8bt
@Aman-tf8bt 4 года назад
Thank you so much sir for such a nice initiative taken by you🙂🙂 🙏. Your videos make learning very simple 🙏🙏
@CrocoduckRex
@CrocoduckRex 8 лет назад
Very lucid lecture! Thanks for the useful videos!
@talaabdali920
@talaabdali920 4 года назад
Thank you very much for this Amazing series of IR spectroscopy, Finally I can understand what is going on. But the Uv/visible spectro was not as good as the IR,from a personal point of view. Lastly, Huge Thanks from Deep of my heart for this spectacular Fruitful journey you took us through. All the BEST Khan Academy. ❤️
@elijahberegovsky8957
@elijahberegovsky8957 3 года назад
Thank you! This course is very informative
@abhinavporwal1476
@abhinavporwal1476 8 лет назад
u r doing a great job
@scottconnor22
@scottconnor22 8 лет назад
Even the first 14 seconds was very informative. Thank you
@SoulReviving786
@SoulReviving786 4 года назад
@scott Connor ...yes bro
@chrisnguyen1
@chrisnguyen1 4 года назад
yup
@Ahmed-ii7up
@Ahmed-ii7up 3 года назад
Yeah I hate those useless stupid intros that some use.
@shahidmahmood7046
@shahidmahmood7046 8 лет назад
Fantastic lecture
@ellykalama9975
@ellykalama9975 4 года назад
Thank for the video, it was very impressive
@nabael-kaaby565
@nabael-kaaby565 6 лет назад
IR made easy, can't thank you enough !
@johnfrancis5112
@johnfrancis5112 8 лет назад
sorry! what is the kind of the software that you use for writting in your lectures
@jameliaancel30
@jameliaancel30 8 лет назад
Thank you
@hilalalsalih7988
@hilalalsalih7988 5 лет назад
Thanks!
@ruffyatutube
@ruffyatutube 6 лет назад
What separates the "fingerprint" area from the "diagnostic" one? Why is that wave number of 1500 not some arbitrary line? There are 3 dips in the curve to its left, and two to its right. But why the need for two zones. The teacher leaves this unclear.
@aravindtlp
@aravindtlp 6 лет назад
ruffyatutube this is my guess - the wave numbers of groups (alakane, alkene, acid etc) are generally greater than 1500 (from a library of into available). Anything less than that is unique (like fingerprint) to each molecule. So 1500 is probably a good separation point identified from all the data available regarding wave number of groups.
@UnKnown-ve1qd
@UnKnown-ve1qd 7 лет назад
how do you calculate number of infrared stretches for a metal carbonyl complex?
@stepbystepscience
@stepbystepscience 7 лет назад
very nice
@vollalaravikumar3995
@vollalaravikumar3995 5 лет назад
superb...
@anthonyg1111
@anthonyg1111 6 лет назад
why is 1500 the boundary between diagnostic and fingerprint
@gowrisankar.j
@gowrisankar.j 3 года назад
Great one
@liam7342
@liam7342 4 года назад
Is the method to get this graph called FTIR or is that a different technique?
@robkev159
@robkev159 5 лет назад
sounds exactly like jackfilms at 2.12 and 2.35
@hedn
@hedn 7 лет назад
thanks a lot 💜💛💚💘❤💓💕💞💝💟💗💙
@kevinbyrne4538
@kevinbyrne4538 8 лет назад
Wavenumber is also proportional to the energy of the photons that the substance is absorbing.
@yamawwad
@yamawwad 4 года назад
GREAT video but sound is VERY low.
@clementearreguin177
@clementearreguin177 8 лет назад
How do you know what regions of the IR spectrum correspond to different bonds, such as double and triple?
@abhishekkumar-oh6wf
@abhishekkumar-oh6wf 8 лет назад
+CLEMENTE PANTALEON Arreguin they have a characteristic wave number for their stretch
@sachinkushwaha3245
@sachinkushwaha3245 6 лет назад
Good
@abrahambphilips7591
@abrahambphilips7591 Год назад
Thanks
@PritiBingi
@PritiBingi 3 года назад
The lecture will be so good with explanation but this is so fast so it's just okk but explanation will so good 🙏🙏
@abisrandom
@abisrandom Год назад
how do i get that calculator program?
@karlfischer6250
@karlfischer6250 8 лет назад
good video but i don't likee the convention of using v for frequency as it can be confused with speed for v = f lamda
@mehulsharma5228
@mehulsharma5228 8 лет назад
+Karl Fischer Its not actually v, its a greek symbol called Mu , written like a curved v
@theginginator1488
@theginginator1488 6 лет назад
Mehul Sharma *nu Mu is the u with an extra line
@Alrukitaf
@Alrukitaf 2 года назад
I was going to say... f for frequency. Saves confusion with v for velocity.
@ZYCheng
@ZYCheng 7 лет назад
what software did you use to make this video?
@swegelbagel4020
@swegelbagel4020 6 лет назад
brazzers live
@CbarMiiXaaS
@CbarMiiXaaS 6 лет назад
Khan use Smoothdraw iirc
@chiosarco
@chiosarco 6 лет назад
Thanks a lot¡¡¡
@lavarball61
@lavarball61 8 лет назад
great. if you could use f, instead of v for frequency, it would be a lot less confusing. but amazing video
@alexandrasuzannebrasington6331
+Sayandeep Das v is very often used for frequency, this is something you'll run into a lot
@Ms155y
@Ms155y 8 лет назад
Omg hey!!
@lavarball61
@lavarball61 8 лет назад
looks like I'm not the only one in agreement that we have a shite chemistry teacher.
@Ms155y
@Ms155y 8 лет назад
Legit was going say you here cos of
@lavarball61
@lavarball61 8 лет назад
totally
@CheeryA252
@CheeryA252 7 лет назад
why transmittance would be more than 100%?
@nitajusufi7836
@nitajusufi7836 2 года назад
thank you
@sfindaa8523
@sfindaa8523 8 лет назад
Is speed ofd light not 3 x 10^8? why did you use 3 x 10 ^10 instead at 5:15
@johnsonl3656
@johnsonl3656 8 лет назад
+Briste Belle 3x10^8 meter/second. He used 3x10^10 cm/s
@sfindaa8523
@sfindaa8523 8 лет назад
Johnson L Oh, thanks a lot
@bobboon7982
@bobboon7982 6 лет назад
audio could be better
@void4340
@void4340 6 лет назад
I thought v is wave energy and f is wave frequency?
@ariellecampbell
@ariellecampbell 5 лет назад
Shadow destroyer nah v stands for frequency
@jlang
@jlang 4 года назад
To help clarify things: f is the symbol most commonly used for frequency, but nu (written as v) and omega (written as a curvy "w") are also symbols (greek letters) commonly used for frequency. Nu is used more often when specifying electromagnetic waves, such as light, X-rays, and gamma rays. In this example, the narrator is using nu (v), to indicate frequency and the same symbol with a tilde (wiggly line) above the letter, to indicate wave number. Nu does not actually look exactly like the letter "v" in the english alphabet, it looks and is handwritten a bit differently (please google it, if you like), and therein lies the common confusion between nu (meaning "frequency") and velocity, which takes the symbol "v" in formulae written as the letter appears in lowercase form in the english alphabet. :) I hope this helps. :)
@huongdong.........8794
@huongdong.........8794 2 года назад
the video image is too poor, you need to fix it more
@BAPEWRX
@BAPEWRX Месяц назад
You sound like KYR SP33DY
@duongthanhtho6898
@duongthanhtho6898 3 года назад
Video hay, mình tương tác nha
@chanrevo3841
@chanrevo3841 4 года назад
kyr sp33dy?
@jonny377
@jonny377 5 лет назад
seriously the calculation in the middle was a big waste of time .... when people click on this video they want to know the general basics of everything dealing with IR spec...... like show us examples of how to identify groups and all that not some stupid calculation
@john-paulong8012
@john-paulong8012 5 лет назад
That's rude, the calculation is the 'general basics of everything dealing with IR spec'. If you can't interpret the equations and see how it links in with the actual graph you're wasting your own time.
@becauseimbatman7240
@becauseimbatman7240 7 лет назад
I thought speed of light is 3.00×10^8...
@hedn
@hedn 7 лет назад
BECAUSE I'M BATMAN because you are batman 😀😀
@nancyidk6534
@nancyidk6534 7 лет назад
BECAUSE I'M BATMAN 3x10^8 is meter/second whereas here he measured it in centimetre/secomd
@emperorisaacjames7486
@emperorisaacjames7486 6 лет назад
LOLOLOL BEST REPLY EVER!!!
@ebrimaceesay8345
@ebrimaceesay8345 6 лет назад
if the unit is cm/s=3.00×10^10 and if the unit is m/s=3.00×10^8
@vlogsbyfy4038
@vlogsbyfy4038 27 дней назад
First 6 minutes was not necessary...
@jonny377
@jonny377 5 лет назад
I wasted 10 min of my day on this video and i still know the same amount of info on IR that I knew before lol not much ..... cut the crap and get to the point ....not trying to be mean but i dont like wasting my time
@aryandwivedi4053
@aryandwivedi4053 4 года назад
His voice is so annoying
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