Simple and fractional distillations | Chemical processes | MCAT | Khan Academy

[@bodhi6481]

She is so good at making sense of Ochem labs! Thanks Angela

[@amirelias885]

I love how people are falling in love with you more than the content. But yea you do have a great voice and handwriting.

[@sreeparvathy4084]

Your voice is adorable. This is the best fractional distillation explanation ever.

[@samairabakshi1459]

U have lovely handwriting!

[@dominoot2652]

Simple Distillation - 0:00
How to graph (2:30)
Fractional Distillation - 5:44

[@growlegendgt3244]

I wasn't understanding anyyy thing but u changed it all i am really happyyy ❤

[@lauramoreno-vasquez8490]

great vid studying for MCAT thank you Angela !!

[@paingsoekhant8731]

This video is still gold even it was 10 years old

[@LouieAPRIL32013]

Tremendously helpful!
Thank you.

[@prateeksharma6756]

Can you please make a video on azeotropic mixtures.....

[@klaudiastefaniuk3877]

That was as clear as an alcohol after fractional distillation;p Great video and you have such a nice voice

[@kristianduke410]

i know I am quite randomly asking but do anybody know a good place to watch new tv shows online ?

[@jonasemmitt7850]

@Kristian Duke flixportal =)

[@kristianduke410]

@Jonas Emmitt Thanks, signed up and it seems to work :) I really appreciate it !

[@jonasemmitt7850]

@Kristian Duke you are welcome xD

[@methasawijayasuriya6472]

Please do a video on steam distillation.

[@_juanzu_]

Thank you. This helped me so much!

[@jamesgin81]

is a short path distillation head and set-up just as good as a traditional set up with a fractioning column and if so what's the difference.

[@johnnyorozco6434]

Thanks you soo much!You just helped me pass my chemistry test😆

[@card1y3]

THANKU THIS HELPED ME SOSOSOSO MUCH ❤️❤️

[@samantharusike2929]

Thank you that was a lovely video ....

[@levtrot3041]

Damn, that condenser is so cool !

[@lauraa2778]

Love it!

[@elfishawol4506]

Thank god for this, my lab professor doesn't explain anything

[@dwijeshgowda3067]

Pure as C2H5OH. Great explanation!

[@toastybread7085]

what, where does she say that?

[@danielanthony1054]

so it's only 96% good?

[@maryc5905]

Thank you! Khanacademy is awesome

[@sadatullahk]

Thanks a lot, very useful information.

[@chuy27arts]

I was super focused and then you said "Im going to fill it with stars jeje" and I lost it out in laugh, that was just too cute

[@sedra2778]

thanks❤

[@yebdhehhd3836]

i realy waznt clear abut da frayion distillation

[@srishtiraikar8578]

extremely helpful..!!

[@MPRF12345]

Now I understand

[@rdallas81]

why not just keep the toluene in the boiling flask...once you boiled out the cooler substance? After all...you see the temperature on the thermometer,,,and you know the phase change temps!

[@yungmophead]

Thank you so much!

[@mattmcguire5350]

thnx for this gr8 video

[@sarah70067]

Since we're cooling the gas in the second phase change in the condenser, why does the temp rise?

[@thanasisthreeeightsevensev5441]

because it is an exothermic process

[@jaininagdev9145]

Can we do fractional distillation also for the ones who have difference of more than 25K in the boiling points?

[@Jasmine-mb9jv]

it would just take a lot longer bc the mixture would vaporize and condense multiple times before there is enough condensation to elute.

[@ohno2682]

actually helpful what the heck

[@Bahar1370]

you are simply great! studying for MCAT

[@khanacademymedicine]

bglylhakaa My name is Rishi Desai and I work at Khan Academy. If you're willing to share a bit about your experience as a student studying for the MCAT, please send us your email address so we can reach out to you. Thanks in advance!

[@tanjamatijevic5471]

bravo!

[@tinytin5317]

Why is fractional distillation better than simple distillation if you want to collect a more concentrated sample?

[@Jasmine-mb9jv]

This answer is a little late, but fractional distillation is generally used in instances where the boiling points between the two compounds are similar in range (typically the when the difference is less than 25 C). The fractioning column allows for the vapor to evaporate and condense multiple times along the column as it travels up the column allowing for distillation when bps are too close in range for simple distillation.

[@tinytin5317]

@@Jasmine-mb9jv still thank u!

[@Atul21Awasthi]

Nice video

[@KingsHustleLA]

so the only difference is that fractional is purer ..but why do a simple distillation if taking the next step "fractional" is purer? there has to be a difference when using mmj wax/shatter

[@ashifkaredath841]

fractional takes a really long time. if the boiling points are close fractional is better

[@yasminakatebi9265]

Great

[@toastybread7085]

Make up your mind

[@duffduff7824]

WHY IS SAL NOT TEACHING ME THIS!
#JUSTICE FOR SAL

[@rdallas81]

uh.....thats a purple receiving flask.....just to let you know!

[@theegreatestever2420]

damn...

[@NoMoreBsPlease]

Except oil does evaporate! Oh, maybe mention that there are two types of oil. One being more resistant to evaporation, not evaporation proof.

[@matarata6871]

fucken awesome video!!!! 👍🏼👍🏼👍🏼

[@larrycubes8381]

Stars really what are you trying to say!?

[@FlatulenceKardashian]

"IMFs determine boiling point"
"just kidding, this cyclohexane is more than this ketone lolol"
organic chemistry is such mf troll sometimes

[@unknowngirl253]

The diagram😰

[@sandhyaparsad2023]

Angrezi

[@tuteeclusters9809]

Bruh wht is the difference b/w them

[@allyonightmare]

Stfu

[@andersnelson6464]

Lmao why u gotta fill it with stars

[@eduardosoria1614]

This is a bad video on distillation.

[@yasminakatebi9265]

Awfull

[@toastybread7085]

Make up your mind

[@modoneit]

@@toastybread7085 yh lol

[@arunakumawat9595]

Did not help

[@YashKumar-je2dg]

You are alone here.

[@peyton9885]

Useless

[@rembeck8549]

Thank you!