Separating Components of a Mixture by Extraction

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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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.

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Got lab practical Thursday.... which lab will I get??? It's drawn from a hat!!!! Maybe this one! 😄😄

[@Eddance911]

Did an extraction for the first time last week - wish I had the video before then. It's perfect!

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super helpful rn that im doing an organic chemistry lab online during this pandemic. Thanks for the upload!

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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!!

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thank you so much! extraction finally began to make some actual sense 👏

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Nice explanation. Thanks a lot for this

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Actually nice video.... That method was difficult to me,but after watching this video i could understand...thanks for you..

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I'm so pissed.
My professor made this sound way more complicated.
Thanks Dave.

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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 😅

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OMG thanks so much this video was incredibly helpful it pretty much cleared what was happening in the lab. WOW

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Which grade do you learn these seperation methods of compounds?

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Thank you!!

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prof thank you for your deep explanation. but which is our product in separation of benzoate with HCL?

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Question: Which is more effective in separating the components of an ink? Water or alcohol?

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Thanks for the video! How did you know how much of each (ex: HCl, sodium bicarb, etc.) to add while performing the extractions?

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I did this in my lab but I was wondering what the purpose is of cooling the aniline salt before adding the NaOH?

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Please sir make a video on
Separation and identification of the binary organic mixture ( e.g. urea and salicylic acid)

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Thanks a lot . You make the picture more obvious

[@shingwei97]

always check the density! solvent like DCM will be at the bottom.

[@ProfessorDaveExplains]

yes good point! though most organic solvents will be on top

[@DaniFilth87]

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

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@@DaniFilth87 Awesome hack!

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Is this grindr that we talkin bout tops and bottoms? Power bottom BTW :)

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spartanrabbit Dennis reynolds?