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Professor Boebinger
Приєднався 30 січ 2014
CHEM 123 ~ Chemistry for Everyone ~ Crafton Hills College
Aldehyde & Ketone Reactions Experiment
OCHEM Experiment: This video is about Aldehyde & Ketone Reactions.
Part A: Oxidation- Tollens’ Silver Mirror Test
Aldehydes and ketones react differently towards oxidizing agents. Aldehydes are easily oxidized to acids with the same number of carbon atoms.
Part B: Addition Reactions
Bisulfite Addition compounds. Aldehydes and some ketones react with saturated aqueous sodium bisulfite to form white crystalline addition products. The nucleophile is the bisulfite ion.
Part C: Reactions of Enolate Anions
Enolate anions can act as nucleophiles in many reactions. Enolate anions react rapidly with halogens to give α-halocarbonyl compounds.
Part D: The Aldol Condensation:
Enolate anions can add to carbonyl groups since they are nucleophiles. When acetaldehyde is treated with dilute base, it condenses with itself to give aldol. Upon heating, the aldol loses water, giving the unsaturated aldehyde, crotonaldehyde.
Here is the experiment with procedure and report drive.google.com/file/d/1c9cCpleMi1Blz2Vc5ZL4tfpq6C5yZKhA/view?usp=sharing
Part A: Oxidation- Tollens’ Silver Mirror Test
Aldehydes and ketones react differently towards oxidizing agents. Aldehydes are easily oxidized to acids with the same number of carbon atoms.
Part B: Addition Reactions
Bisulfite Addition compounds. Aldehydes and some ketones react with saturated aqueous sodium bisulfite to form white crystalline addition products. The nucleophile is the bisulfite ion.
Part C: Reactions of Enolate Anions
Enolate anions can act as nucleophiles in many reactions. Enolate anions react rapidly with halogens to give α-halocarbonyl compounds.
Part D: The Aldol Condensation:
Enolate anions can add to carbonyl groups since they are nucleophiles. When acetaldehyde is treated with dilute base, it condenses with itself to give aldol. Upon heating, the aldol loses water, giving the unsaturated aldehyde, crotonaldehyde.
Here is the experiment with procedure and report drive.google.com/file/d/1c9cCpleMi1Blz2Vc5ZL4tfpq6C5yZKhA/view?usp=sharing
Переглядів: 17 815
Відео
EAS Nitration Experiment & Recrystallization
Переглядів 3,2 тис.4 роки тому
Online OCHEM Experiment: Demonstration of the laboratory experiment to perform an Electrophilic Aromatic Substitution (EAS) of methyl benzoate to synthesize m-nitromethylbenzoate. Includes demonstration on use of Buchner funnel and an aspirator was used, the vacuum was out that day. The crude product was recrystallized using methanol. The purified product was weighed so the precent could be cal...
CHEM 123 Welcome
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Crafton Hills College: CHEM 123 Chemistry for Everyone Welcome
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New Material: Chapters 12-14 ~ Structure Determination: Mass Spectrometry (MS) and Infrared Spectroscopy (IR), Nuclear Magnetic Resonance Spectroscopy (HNMR, CNMR), Conjugated Dienes & Ultraviolet Spectroscopy (UV/VIS). Final Exam is comprehensive! All Information in Chapters 1-14 will be on the final.
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Переглядів 1708 років тому
New Material: Chapters 12-14 ~ Structure Determination: Mass Spectrometry (MS) and Infrared Spectroscopy (IR), Nuclear Magnetic Resonance Spectroscopy (HNMR, CNMR), Conjugated Dienes & Ultraviolet Spectroscopy (UV/VIS). Final Exam is comprehensive! All Information in Chapters 1-14 will be on the final.
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CHEM 212 Exam 4 Parts 2 & 3
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👍🏼🥹
Saw absolutely nothing 😅
Thank you so much! Very helpful.
Does anyone know how to double space in canvas discussion post
Amazing
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Thank you! Today, I had to post in a discussion board for class and I was so scared that I would press a wrong button. I was so lost until I watched this video. It was very helpful.
Thanks this helps a lot clear and on point
I made it to grad school without ever using canvas or a discussion board and now I’m lost lol
is that a playstaion in the background
W PS4 background music
Clear & concise!
Wow
lots of haters in the comments, thank you!
Perfect! Thanks so much.
THANK YOU FOR THE IMPORTANT INFORMATION!
What if there is no reply?
For science student nothing is late. I'm seeing this video after 7 years in 2022 and it helped me a lot. Thank you for explaining 🙏
Do I hear a PS4 Home Screen
haha, yes!
Great explanation. Veiwing from india
The lecture was a bit to vague for me so I turned to youtube and this really is exactly what I needed
Thanks so much for your time! Great video
thank you-
THANK YOU! this made so much sense wow
The first one... first you called it the chair, then you called it the boat, then you called it the chair. HELLO?
Thank you 😭
No problem 😊
Hello, how could I get into the contact with you?
Omg thank you...u saved my life honestly..I just started using canvas..its so complicated..I think Blackboard is better
Glad I could help!
this is the best description of orbital drawings that I may ever find. thank you!!!
You're very welcome!
Benzaldehyde didnt react as you took ammonium hydroxide instead of aqueos ammonium try with it you will get the silver mirror
Thank you!!! All other videos on UA-cam start their explanations already in chair so I could not figure out how to get there without your video.
Osm
Professor Boebinger you are a legend
Thanks, glad it helped.
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Glad it was helpful!
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Fantastic, Professor!
Glad you liked it!
Hello! Thank you for the great video (: I was wondering where you bought/got the big molecular orbital kit from. The way it shows pi bonds really helped me out, rather than the smaller models. Thanks!
Our campus purchased them in the 1970"s but I'm sure they can be found online today!
Thank you so much! You saved my life.
You're welcome!
Great! Its very helpful. This site is new for us and I didn't know how to post discussion. But now I get it. Thank you
You're welcome!
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Glad you liked it!