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.
@@user-pf4cj7kb5e If you were being consistent with running 4 miles everyday, would you instantly change the routine if a meta analysis told you theres a completely new way of running. Sometimes you have to ignore the "most optimal way" of doing things because it just doesnt work for you. Youre acting like you suddenly become unable to memorize and understand once you do it visually lol. The difference is microscopic.
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"
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 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.
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
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
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. another cool dave!!..i dont know of any bad daves!
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!!
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.
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
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!
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.
PD is so cute and cuddly in these vids. But he gets a bit less cuddly in those take-down vids he has done. And rightly so. Just funny to see the duality of man in one of favorite legends of chem. teaching.
It sounds like you know what you are doing. I took a zip of some NyQuil, after some minutes I felt like a brick was put on my chest and I started to feel so dam sleepy, but I stayed awake watching Netflix. After a couple of minutes of fighting my sleep I felt like the brick was removed and I no longer felt sleepy and I am here 4:20Am writing this to ask you If there's a way to extract the chemical? In NyQuil that makes us fall to sleep. Great video By the way, berry well explained and detailed... I Wish you would be the one person directing every single video on UA-cam. This is my 2nd language for you strangers don't correct me, I didn't listen to my English teacher when i was in school and I'm not listening to you now. But Science I do like so, if you can help me out with this, go ahead and reply.
The substance that makes you sleep is diphenhydramine also active ingredient in Benadryl. No need to extract from NyQuil just buy generic sleep aid pills. Same substance
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 😅
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.
Strong acid and strong base unless there is a reason not to. His choice to use NaHCO3 as the base was confusing to me. Carbonates are generally a poor choice for acid base extractions due to the generation of CO2 gas, which results in foaming, emulsions and rapid pressure buildup in sep funnels.
Ooh.. like Cold Water extraction.. like to separate codeine from citodon.. which led me knowing that I cant metabolize it (not always anyway, there is times tho..) and its useless for me🥴... Please Prof. Dave.. Can You explain that process and whats happening?!...😌.. Maybe You has a vid about it already.. but I tend to get stuck when checking Your lists... so I mostly learn something else in a truelly neat way❣️(stunned, shocked and so on). Thanks❣️👋🏼😌🇸🇪 (red. ang ”cold”)
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?
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.
Can someone explain to me why you couldn't just use water and not ether at all since only the sodium chloride is soluble in water? Could you not just use a filter and everything will drain besides the cholesterol?
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
@@user-pf4cj7kb5ewas about to comment that
@@user-pf4cj7kb5e yes but things like adhd matter, it just makes things more interesting for you to learn thats all that matters for now
@@user-pf4cj7kb5e If you were being consistent with running 4 miles everyday, would you instantly change the routine if a meta analysis told you theres a completely new way of running. Sometimes you have to ignore the "most optimal way" of doing things because it just doesnt work for you. Youre acting like you suddenly become unable to memorize and understand once you do it visually lol. The difference is microscopic.
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
U better not be referring to my boy Organic Chemistry Tutor!! Hes great
@@hamzaha.al-quaid2441 Right 😂😂 Organic chem tutor literally got me through most of college
wattayatalkinabeet
Whadda ya talkin Abeet?
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!
Another absolute banger by Professor Dave. My 10 page pre-lab outline couldn't explain it worse. Bless
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!
Who are you and what did you do with Dave? 🤣🤣 nice new haircut professor!
Lol😂😂
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
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
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.
another cool dave!!..i dont know of any bad daves!
WOW! your video is saving me on this report i procrastinated. You are truly the michael jordan of organic chemistry.
Did an extraction for the first time last week - wish I had the video before then. It's perfect!
Such a good lecturer. Thanks for helping me increase my MCAT score
Imagine having a lecture with Dave and actually leaving class understanding the material
super helpful rn that im doing an organic chemistry lab online during this pandemic. Thanks for the upload!
Thank you Science Jesus
Thanks
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😂😂
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.
Yet another excellent video to help with my orgo lab. Thanks prof Dave!
I'm so pissed.
My professor made this sound way more complicated.
Thanks Dave.
What a bloody legend, absolute gold.
Single-handedly destroyed my chem teacher in explaining this. Thank you!
You are doing a service to humanity.
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?
So happy to discover this channel. Thanks!
You are amazing explaining each and every detail! I will definitely recommend you.
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!
In 3:14 won’t the choloroanaline and benzoic acid react since they are both acid and base?
Nope. Organic bases and acids don't react spontaneously. They have a higher energy barrier and always require catalysts to react with each other.
That's so cool and clear. Thank you so much from Russia.
Dude!!!! You are so smort that my teacher uses your videos for lessons
That was SO helpful for my organic chemistry, thank you!
Tank u for this videos. You are amazing. Industrial chemistry student from Saudi Arbia❤❤
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.
PD is so cute and cuddly in these vids. But he gets a bit less cuddly in those take-down vids he has done. And rightly so. Just funny to see the duality of man in one of favorite legends of chem. teaching.
these are so much better than my lab manual's procedures, ngl
you are the greatest person ever for explaining chemistry❤️❤️❤️❤️
prof. dave strikes again!
thank you so much! extraction finally began to make some actual sense 👏
At 7:58, how do we get rid of the Na? Does it just remain in the dried solution? Is it filtered?
I'm 10 years out of college and wanted to watch something like this on a whim (dare I say, for fun?). Excellent explanation!
I wish i could like this 10 times omg thank u professor dave!
well explained and was so useful ... appreciate your efforts and thanks alot
Thanks for the video! How did you know how much of each (ex: HCl, sodium bicarb, etc.) to add while performing the extractions?
Literally you make my learning to become easier ,,,,,I appreciate you alot
Your voice is soooo soothing
these videos are so helpful, I'm doing my degree at uni and still use these for my chem practicals if I can
It sounds like you know what you are doing. I took a zip of some NyQuil, after some minutes I felt like a brick was put on my chest and I started to feel so dam sleepy, but I stayed awake watching Netflix. After a couple of minutes of fighting my sleep I felt like the brick was removed and I no longer felt sleepy and I am here 4:20Am writing this to ask you If there's a way to extract the chemical? In NyQuil that makes us fall to sleep. Great video By the way, berry well explained and detailed... I Wish you would be the one person directing every single video on UA-cam.
This is my 2nd language for you strangers don't correct me, I didn't listen to my English teacher when i was in school and I'm not listening to you now. But Science I do like so, if you can help me out with this, go ahead and reply.
The substance that makes you sleep is diphenhydramine also active ingredient in Benadryl. No need to extract from NyQuil just buy generic sleep aid pills. Same substance
I swear to god whenever I graduate and start making money I'll donate to your patreon lol.
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?
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 😅
Thank you so much! Really helped me to improve my understanding.
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.
Thank you so much professor for making this video 😇😄
This video is super helpful! Thank you so much!!
Thank you so much. Great video very easy to understand.
Oil separates on its own by time just to make sure its pure 👌
This video. This is everything.
How do you decide which acid or base compound will work better for the extraction? Is it pH based or is it experimental
Strong acid and strong base unless there is a reason not to. His choice to use NaHCO3 as the base was confusing to me. Carbonates are generally a poor choice for acid base extractions due to the generation of CO2 gas, which results in foaming, emulsions and rapid pressure buildup in sep funnels.
THANK YOU SO MUCH PROFESSOR DAVE
Top notch content. Congratulations.!
What about containment? Would it be a precise extract? Or would it have another impurities
prof thank you for your deep explanation. but which is our product in separation of benzoate with HCL?
That was awesome! Thank you! please publish more of these videos!
Actually nice video.... That method was difficult to me,but after watching this video i could understand...thanks for you..
I came here to learn about Solvent Extraction when it comes to extracting lithium from black mass, a product of battery recycling.
Oooh! I love your new hairstyle, professor :D And nice video, as always!
super helpful. Thanks for the upload!
Hey Professor Dave; are videos 63-119 all lab videos or are some lecture videos?
I did this in my lab but I was wondering what the purpose is of cooling the aniline salt before adding the NaOH?
Professor Dave for the save, as always ❤
Dave and save Rythm
I literally love you, thank you so much 😭
Ooh.. like Cold Water extraction.. like to separate codeine from citodon.. which led me knowing that I cant metabolize it (not always anyway, there is times tho..) and its useless for me🥴... Please Prof. Dave.. Can You explain that process and whats happening?!...😌.. Maybe You has a vid about it already.. but I tend to get stuck when checking Your lists... so I mostly learn something else in a truelly neat way❣️(stunned, shocked and so on). Thanks❣️👋🏼😌🇸🇪 (red. ang ”cold”)
Hello my dear
@@collinsedafe415 Hi there..👋🏼🙂
@@lindaedvardsson4218 how are you doing my dear I hope you are doing well my dear
@@collinsedafe415 hmm😧.. Thanks.. Its tough but Im still battle… How are You?… and Who are You?🥴👋🏼🙂🇸🇪
Nice explanation. Thanks a lot for this
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?
Thank you for such a great explanation!
finally somebody is speaking my languange
And thanks for another awesome video!
Nice explanation
Question: Which is more effective in separating the components of an ink? Water or alcohol?
this helped me so much thank you!
Isn't the organic layer more denser than the aqueous layer?
Not usually
Looking fresh proff🤘
You're new haircut 👌
And teaching method... 👌
I am here learning as an aromatherapy student lol, thanks so much!
Literally the cutest video ever
I have made a sandalwood extraction with ethanol alcohol. Is there a way to separate the oil from the resin? Thanks
very informative, thank you!
Why do we use deionized water at the end of the wash?
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.
Your videos are amazing, thanks so much
hello, i have a question, is benzoic acid a bit water soluble?
very well explained. thanks!
How can we separate sodium from potassium ions from solution (not by precipitation)is there any membrane
Can someone explain to me why you couldn't just use water and not ether at all since only the sodium chloride is soluble in water? Could you not just use a filter and everything will drain besides the cholesterol?
awesome explanation 🤙🏽 ty
Thought i clicked on the wrong channel with your new haircut lol