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Tyler Johns
United States
Приєднався 25 бер 2020
Chemistry Laboratory Experiment Videos
Green Epoxidation of Chalcones
In this experiment, we will perform a "green" epoxidation of a chalcone using hydrogen peroxide in aqueous sodium hydroxide. We will calculate the percent yield, determine the melting point, and analyze the infrared spectrum of the epoxide product.
Переглядів: 2 194
Відео
Relative Stabilities of Complex Ions
Переглядів 9273 роки тому
In this experiment, we will examine whether the precipitates or complex ions formed by the reaction of hydrated copper(II) ion with a given species can, on addition of a second ligand, be dissolved or transformed to another species. We will then rank the relative stabilities of the precipitates and complex ions made from copper(II) ion with respect to one another, and thus rank the equilibrium ...
Synthesis of Substituted Chalcones
Переглядів 5 тис.3 роки тому
In this experiment, we will prepare a substituted chalcone using the 4-methylacetophenone product from the Friedel-Crafts acylation experiment and 3-nitrobenzaldehyde, a substituted benzaldehyde. You will need to determine the structure of the condensation product that you expect to be formed in the reaction, and the molecular formula of that product.
Friedel-Crafts Acylation
Переглядів 1,2 тис.3 роки тому
In this experiment, we will perform a Friedel-Crafts acylation of toluene using acetyl chloride. We will calculate the percent yield, determine the boiling point, and analyze the IR spectrum of the product.
Preparation of an Unknown C-4 Acetate Ester
Переглядів 7183 роки тому
In this experiment, we will prepare an ester from acetic acid and an unknown C-4 alcohol. You will need to use the boiling points of the unknown alcohol and its ester, as well as the infrared spectra, to determine the identity of the alcohol and the ester. Once you know the identities of the alcohol and ester, you can calculate the percent yield.
Unknown #1 - Identification of Unknowns (Lab Practical)
Переглядів 2,4 тис.3 роки тому
In this experiment, we will analyze an unknown organic compound. You will be tasked with identifying the unknown organic compound. Please reference the Identification of Unknowns (Part 1-8) videos to aid you in this process. Solubility Tests - Identification of Unknowns (Part 1) - ua-cam.com/video/1frcZAUCBTY/v-deo.html Unsaturation Test - Identification of Unknowns (Part 2) - ua-cam.com/video/...
Esters - Identification of Unknowns (Part 8)
Переглядів 1,2 тис.3 роки тому
This is Part 8 of the Identification of Unknowns Organic Qualitative Analysis experiment. In this experiment, we will review the ferric hydroxamate test for esters. Esters are converted to hydroxamic acids upon being heated with hydroxylamine, and the hydroxamic acids form colored complexes with ferric ion.
Alcohols - Identification of Unknowns (Part 7)
Переглядів 6653 роки тому
This is Part 7 of the Identification of Unknowns Organic Qualitative Analysis experiment. In this experiment, we will review the Lucas test for alcohols. This test depends on the appearance of an alkyl chloride as an insoluble second layer when an alcohol is treated with the Lucas reagent. The Lucas test does not work well with solid alcohols or liquid alcohols containing six or more carbons.
Amines - Identification of Unknowns (Part 6)
Переглядів 8883 роки тому
This is Part 6 of the Identification of Unknowns Organic Qualitative Analysis experiment. In this experiment, we will review the nitrous acid test for amines. The nitrous acid test is used to distinguish between primary aromatic and primary aliphatic amines from secondary and tertiary amines.
Phenols - Identification of Unknowns (Part 5)
Переглядів 7193 роки тому
This is Part 5 of the Identification of Unknowns Organic Qualitative Analysis experiment. In this experiment, we will review the ferric chloride and the cerium (IV) tests for phenols. 0:19 = Ferric Chloride Test 1:46 = Cerium (IV) Test
Carboxylic Acids - Identification of Unknowns (Part 4)
Переглядів 8953 роки тому
This is Part 4 of the Identification of Unknowns Organic Qualitative Analysis experiment. In this experiment, we will review the pH of an aqueous solution test and the sodium bicarbonate test for carboxylic acids. 0:25 = pH of an Aqueous Solution Test 1:46 = Sodium Bicarbonate Test
Aldehydes & Ketones - Identification of Unknowns (Part 3)
Переглядів 1,5 тис.3 роки тому
This is Part 3 of the Identification of Unknowns Organic Qualitative Analysis experiment. In this experiment, we will review the Tollens test for aldehydes and the Iodoform test for methyl ketones. These compounds are identified by the distinctive reactions of the carbonyl function. 0:25 = Tollens Test 3:32 = Iodoform Test
Unsaturation Test - Identification of Unknowns (Part 2)
Переглядів 1,4 тис.3 роки тому
This is Part 2 of the Identification of Unknowns Organic Qualitative Analysis experiment. In this experiment, we will review the potassium permanganate test for unsaturation. The potassium permanganate test is positive for double and triple bonds, but not for aromatic rings.
Solubility Tests - Identification of Unknowns (Part 1)
Переглядів 5 тис.3 роки тому
This is Part 1 of the Identification of Unknowns Organic Qualitative Analysis experiment. In this experiment, we will review solubility tests for organic compounds. Solubility tests are important in determining the nature of the main functional group of an unknown compound. 1:10 = Benzoic Acid 2:26 = 2-Naphthol 3:15 = Dimethylaniline 4:10 = Benzophenone 4:56 = Biphenyl
Solubility Tests for Organic Compounds
Переглядів 30 тис.3 роки тому
In this experiment, we will review the solubility tests for organic compounds. Solubility tests are important in determining the nature of the main functional group of an unknown compound. 0:29 = Benzoic Acid 1:45 = 2-Naphthol 2:33 = Dimethylaniline 3:28 = Benzophenone 4:15 = Biphenyl
Potassium Permanganate Test for Unsaturation
Переглядів 39 тис.3 роки тому
Potassium Permanganate Test for Unsaturation
Sodium Bicarbonate Test for Carboxylic Acids
Переглядів 12 тис.3 роки тому
Sodium Bicarbonate Test for Carboxylic Acids
pH of an Aqueous Solution Test for Carboxylic Acids
Переглядів 7913 роки тому
pH of an Aqueous Solution Test for Carboxylic Acids
Preparation of an α,β-Unsaturated Ketone by Combined Michael and Aldol Condensation Reactions
Переглядів 1,5 тис.3 роки тому
Preparation of an α,β-Unsaturated Ketone by Combined Michael and Aldol Condensation Reactions
Thank you sir 😁 Amazing
Thank you so much for this review! I am now able to go into lab understanding the concepts beforehand!!
Love your videos! Thanks for sharing them.
Well done
i have my exam in less than 12 hours thanks for helping through:)
Nice explanation sir thank you
Very interesting thanks a lot for the amazing visualization of the concept ❤❤
My pleasure 😊
Thankyou sir for This video ❤️🙏🏻
Thank you very much ; excellent ; very good and acute explanations...Fred/Nice/France
You are welcome!
very good very nice xx
Many thanks
🙏🏻🙏🏻🙏🏻
thanks for the video
You're welcome!
Watching your videos makes me wish I was a student in your organic chemistry lab. I probably would have a better chance at getting a better/higher grade. Thank you very much for your video demonstrations. Incredibly helpful.
Wow, thank you!
loved this video
Thanks 🌹 fir the demonstration
My pleasure 😊
Immediate Turbidity at 0 min As always Congrats 2-methyl 2-propanol Better luck next time 2 butanol 1-Butanol You can't do anything in your life.
Thanks :D
Welcome!
Yo just a young chemist that wants to experiment with spinach here and wanted to say this video was the BOMB yo Hope to be able to try this out one day and maybe add some more steps for analysis. Great stuff
Thank you very much for posting this. I only got readings and a few pictures for my Organic Chemitry lab course, which while helpful aren't super helpful. I was hoping I could get some video demonstrations posted by my instructor, which I got a few of, which were kind of helpful. Now I came on UA-cam, and found your videos. Thank you to you and anyone else who had any contributions to these videos. I wish you all happiness and health.Your videos are really helpful in being able to actually see how to use the lab equipment. Thank you, thank you so much.
You are very welcome. Thank you for your kind words. I am glad you find the videos helpful!
I like how loud and clear you are explaining the procedures and thank you so much for making this video, Your videos are really helping me to have better understanding and performance in the lab.
So nice of you! I'm glad the videos are helping!
Thank you for this video it was very helpful and I LOVED the music used during one portion of the experiment. Thank you!
Glad you enjoyed it!
You helped me understand the experiment clearly thank you sir🙂
Glad to hear that
Really helped me to visualise the test. Thank you sir.
Excellent!
your videos are very good and have a wide message thank you
I appreciate that!
These videos are very helpful!
Glad you like them!
😇
Nice work science keep up 😎
Thanks, will do!
Thank You Sir. It is amazing to visualize chem experiments .. makes it more fun. :)
You are welcome!
That’s helped me a lot 👍
Thank you so much for this video, it's been exceptionally helpful in reviewing some Organic Chemistry principles!
You're very welcome!
Very helpful...thanks for the video!!
Glad it was helpful!
Thank you so much for making these videos! They are incredibly helpful in preparing me for my experiments.
Great to hear!
Thank you💯🌸
Welcome!
Beautiful separations
You are so kind
Best video ever 👍
This experiment was done really professionally
Thanks sir<3
Most welcome
Thank you sir for this video
Thank you so much sir
Most welcome
THANKS BRUH :)
Thank youuu
You're welcome!
Now I understood this
Thank you very much! I've gained a lot of knowledge.
Glad it was helpful!
Your a beast!
Thank you sir💙
You're welcome 😊
Thank you sir...
Most welcome
TQ SIR
Good Work Professor Tyler.
thanks nice one
Awesome 😎👍
Thank you! Cheers!