Separating Components of a Mixture by Extraction
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- เผยแพร่เมื่อ 14 ก.พ. 2019
- When we perform a chemical reaction, we are usually trying to get a particular molecule. But when we are done with the reaction, there will probably be a bunch of different stuff in the reaction flask. How do we get just the thing we want and not the other stuff? It's actually pretty involved, with a couple different steps, but the first of these will always be extraction using a separatory funnel. Let's learn how to do this!
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Outstanding video and explanation! I did a PhD in organic chemistry many years ago and I'm now in my 9th year of secondary teaching, planning an A-level lesson - Wow do I wish your videos were around when I was at Uni!
Hello Dr Louise, is this a possible method to extract organochlorine concentration, Im doing a research for my thesis, and its about occurence of OCPs level of concentration in a river.
@@lienloo1274 how did your thesis go
I'm a visual learner, and these videos are SOOOOOOO helpful! Now I'm not as nervous about messing up in lab!
Concepts like "visual learners" And learning styles in general are unsubstantiated by scientific evidence
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@@user-pf4cj7kb5e yes but things like adhd matter, it just makes things more interesting for you to learn thats all that matters for now
It baffles me how you're able to put out this incredibly high-quality content so consistently and most channels/networks can't advance past a black screen and 20min of "uhh so umm"
A
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@@hamzaha.al-quaid2441 Right 😂😂 Organic chem tutor literally got me through most of college
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Whadda ya talkin Abeet?
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you are actually amazing man. Like any time I find myself in a pinch and I've lost all hope one of your vids will just pop up out nowhere and save my butt
This deserves a lot more attention and likes, it was beyond thorough !!!! Loved it !
This is really helping me out with the lab report I forgot I had, thank you!
This is exactly what we do at my job to analyze water samples for oil and gas. I work for my state's environmental quality department so this is very relevant.
Professor Dave another great video, direct and to the point. Keep up the great work. Cheers!
Another absolute banger by Professor Dave. My 10 page pre-lab outline couldn't explain it worse. Bless
You are amazing explaining each and every detail! I will definitely recommend you.
Yet another excellent video to help with my orgo lab. Thanks prof Dave!
I am crazy of you profesor uffff I have never seen any profesor who did chemistry easy and impressive. I understand as soon as I start your video .please do not die as a living thing. You are important to us
Did an extraction for the first time last week - wish I had the video before then. It's perfect!
super helpful rn that im doing an organic chemistry lab online during this pandemic. Thanks for the upload!
Incredible video!!!!
I'm from Mexico and I didn't find a good video about this topic in Spanish, therefore I had to search a video on English and your video it's perfect
What a bloody legend, absolute gold.
You are one of the best professors I know until now. If I have any questions regarding the chemical field because I am pursuing as a chemical engineering technologist in the 2nd year, how can I reach you ?. Thank you a lots for your effort Profs Dave.
Such a good lecturer. Thanks for helping me increase my MCAT score
That was awesome! Thank you! please publish more of these videos!
Damn professor Dave... idk how you did it, but you took my absolute most difficult (but favorite) subject of organic chemistry and helped me make sense of it. Those acid/base reactions sure come in handy.
So happy to discover this channel. Thanks!
Thank you so much! Really helped me to improve my understanding.
Literally you make my learning to become easier ,,,,,I appreciate you alot
WOW! your video is saving me on this report i procrastinated. You are truly the michael jordan of organic chemistry.
If only I had seen your video sooner! I made so many mistakes during that lab because the paragraph-style instructions were not very helpful🥲 I had no idea how to vent when the text asked me to or why we were adding all the chemicals and solvents for. Thank you for teaching me! It helps me regain hope and my passion for chemistry!
thank you so much! extraction finally began to make some actual sense 👏
Imagine having a lecture with Dave and actually leaving class understanding the material
And I'm finally starting to understand what extraction really is😂😂 you know bcz of this whole quarantine thing we can't do these experiments in lab so your videos are a life savor!!Thank you so much!!
I am searching Indian in comment box and I found you😂😂
This video is super helpful! Thank you so much!!
an actually useful tuber, one that teaches and also entertains...90% of tubers tend to just to the latter... also glad to see somany people jumping into such a deep can of spaghetti.
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Thank you for such a great explanation!
these videos are so helpful, I'm doing my degree at uni and still use these for my chem practicals if I can
Tank u for this videos. You are amazing. Industrial chemistry student from Saudi Arbia❤❤
Thank you so much professor for making this video 😇😄
Actually nice video.... That method was difficult to me,but after watching this video i could understand...thanks for you..
Nice explanation. Thanks a lot for this
super helpful. Thanks for the upload!
very well explained. thanks!
Your videos are amazing, thanks so much
Top notch content. Congratulations.!
Thank you so much, that was really helpful!
Your voice is soooo soothing
very informative, thank you!
And thanks for another awesome video!
I literally love you, thank you so much 😭
Got lab practical Thursday.... which lab will I get??? It's drawn from a hat!!!! Maybe this one! 😄😄
THANK YOU SO MUCH PROFESSOR DAVE
You are doing a service to humanity.
Wow thankyou so much for the explanation!
prof. dave strikes again!
Nice explanation
this helped me so much thank you!
OMG thanks so much this video was incredibly helpful it pretty much cleared what was happening in the lab. WOW
Which grade do you learn these seperation methods of compounds?
Oooh! I love your new hairstyle, professor :D And nice video, as always!
this was crazy helpful lol thank you so much!
Very nice job! Thanks
This video. This is everything.
You are a life saver! Thank you!!
That's so cool and clear. Thank you so much from Russia.
awesome explanation 🤙🏽 ty
always check the density! solvent like DCM will be at the bottom.
yes good point! though most organic solvents will be on top
In an OC lab course the lab assistant provided a good life hack: if you're unsure which layer is which, just draw a line with a marker where both layers meet. Add a little water: if the level of the seperating line remains in line with your marking, then water is the upper layer. If it is raised, water is at the bottom
@@DaniFilth87 Awesome hack!
Is this grindr that we talkin bout tops and bottoms? Power bottom BTW :)
spartanrabbit Dennis reynolds?
I'm 10 years out of college and wanted to watch something like this on a whim (dare I say, for fun?). Excellent explanation!
Thank you professor ❤️
Very helpful. thanks!
I am here learning as an aromatherapy student lol, thanks so much!
Thanks for the video! How did you know how much of each (ex: HCl, sodium bicarb, etc.) to add while performing the extractions?
Thank you for this ❤️
Eres genial Amigó,un abrazo desde san jerónimo antioquia colombia
At 7:58, how do we get rid of the Na? Does it just remain in the dried solution? Is it filtered?
Omg this brings back bad memories. I remember in OG Chem I poured out all the liquid by accident🙃. I still remember my partner begin really upset even tho i ask them to where and they said all of it and by all of it they meant the aqueous layer. Hahah fun times 😅
Very nice for ur all videos sir.😊💛👏
Professor Dave for the save, as always ❤
Dave and save Rythm
Single-handedly destroyed my chem teacher in explaining this. Thank you!
prof thank you for your deep explanation. but which is our product in separation of benzoate with HCL?
Literally the cutest video ever
Dude!!!! You are so smort that my teacher uses your videos for lessons
Dave you are the best
You're new haircut 👌
And teaching method... 👌
fascinating, thank you!
Thanks a lot . You make the picture more obvious
u saved another day of mine
Hi Professor Dave. Just a question because I need it for a research project. What equipment do you exactly need for soxhlet extraction? I'd be extracting flavonoids from cabbages. I already have ethanol but what else?
This is great...Thanks a lot
DUDE IM SO THANKFULLLL
I'm so pissed.
My professor made this sound way more complicated.
Thanks Dave.
In 3:14 won’t the choloroanaline and benzoic acid react since they are both acid and base?
i literally love you
Looking fresh proff🤘
great video!
Thank you!
wouldn't the carboxy-group in benzoic acid also interact with the water molecules when aniline is washed out of the solution? thank you for your videos!
Hi, I have a question about extraction, if you could help. How would we go about seperatign alcohol and carboxylic acid. More specifically, I am talking about napthol and terphthalic acid. I just don't understand this becuase every video I watch always seperates one acidic, one basic, and one neutral compound.
Amazing explanation...pls do vedio about cation detection(salt analysis), common ion effect, solubility product, selective precipitation...
actually i just shot most of those topics so i'll be releasing them soon!
Thank you.
Thank you!!
Hi Dave, thanks for a great video as always! I just have 2 quick questions.
1. What happens to the anion in the strong acid, chlorine in this case?
2. What is the gas that is produced by the reduction of the alanine?
My guess is that both questions can be answered in the same way: the anion is ditched by the proton and forms a gas. Is this correct? If so, should there be a warning to not try this at home due to the dangers of chlorine gas?
It’s a chloride ion and it goes nowhere. It is dissolved in the water along with aniline ion. There is no gas product in this reaction. The pressure build up comes from the volatility of the ether.
Please could you help me
When make mixture from ethanol and ptroleum ether to extract total terpnoids compound from medicinal plant using separating funnel any solvent settle in the bottum and any solvent above
Thank you
I have made a sandalwood extraction with ethanol alcohol. Is there a way to separate the oil from the resin? Thanks