![Chemical Thinking Laboratory](/img/default-banner.jpg)
- 49
- 577 417
Chemical Thinking Laboratory
United States
เข้าร่วมเมื่อ 20 ธ.ค. 2018
The one stop source for all your Chemical Thinking guides, tutorials, and educational videos here at the University of Arizona Department of Chemistry and Biochemistry!
The Wittig Reaction
This video demonstrates a Wittig reaction between a substituted benzaldehyde and a phosphine ylid.
มุมมอง: 2 766
วีดีโอ
Aldol Synthesis and Reaction Kinetics
มุมมอง 2.4K2 ปีที่แล้ว
This video shows a crossed Aldol condensation reaction kinetics.
Synthesis of Aspirin
มุมมอง 6K2 ปีที่แล้ว
This video demonstrates a well known method to synthesize aspirin.
A Grignard Reaction
มุมมอง 4.6K2 ปีที่แล้ว
This video demonstrates the synthesis of benzoic acid using the Grignard reaction.
A Friedel Crafts Reaction
มุมมอง 5K2 ปีที่แล้ว
This video demonstrates the synthesis of di-tert-butyl biphenyl via the Friedel Crafts reaction.
A Diels Alder Reaction
มุมมอง 4.8K2 ปีที่แล้ว
This video demonstrates the Diels-Alder reaction and hydrolysis to the corresponding diacid.
Separation and ID of Molecules in a Mixture
มุมมอง 3.6K2 ปีที่แล้ว
this video demonstrates the separation of eugenol and limonene
Extraction of Fats from Food
มุมมอง 12K2 ปีที่แล้ว
This video demonstrates a procedure to extract fats from a food sample
Organic Safety Video
มุมมอง 1.1K3 ปีที่แล้ว
This video covers the general aspects of safety in the U of A organic labs.
Creating a Parallel Dilution Set
มุมมอง 9K3 ปีที่แล้ว
This video demonstrates creating a parallel dilution set, reading known and unknown solutions on a Vernier visable spectrometer along with using excel to create a graph.
Introduction to Laboratory Techniques
มุมมอง 2.7K3 ปีที่แล้ว
this video demostrates using logger pro, a Vernier UV-VIS spectrometer and general lab techniques.
Beer's Law and It's Application
มุมมอง 5K3 ปีที่แล้ว
This video describes Beer's Law and gives example applications for determining concentration and epsilon for unknown solutions.
Spectrophotometry
มุมมอง 2K3 ปีที่แล้ว
This video describes what spectrophotometry is, how a spectrometer works and introduces Beer's Law.
How to Use an Electronic Scale
มุมมอง 2553 ปีที่แล้ว
This video demonstrate how to properly use a top loading electronic scale
How to use a micropipette
มุมมอง 4883 ปีที่แล้ว
This video shows how to use a Fisherbrand variable volume micropipette
Fatty Acid Methy Esters from Triglycerides
มุมมอง 14K4 ปีที่แล้ว
Fatty Acid Methy Esters from Triglycerides
Factors that Affect a Substitution Reaction
มุมมอง 6K4 ปีที่แล้ว
Factors that Affect a Substitution Reaction
Hi, How can we sort two different plastic particles that are very close in density, for example PET/PVC?
?
thats extremely cool thankyou! but i wonder why u put sodium hydroxide in it, i wonder about the whole thing actually! really cool!!!
Hi, Any chemical or liquid combination can create a bright white light that continues to glow for upto 1 month or more. is it possible to make it?
Can you tell me what food did use
Why would i make aspirin while i can buy it frkm pharmacy
real
What is the name of this method?
May I ask what solvent did you use?
How to remove the solid type sample fixed inside the tip of the centrifuge tube
What is the name of this method of experiment?
Dear Sir/Mam, Could you please show your calculation rule. I want to write down your procedure with result of %fat sample
Is it essential oil?
What is method that you used for lipid extraction? Is it Folch method?
Which solvents you are using?
Filter paper has a rough and smooth side. Does it matter the orientation?
I like Experimenting with small amount of chemicals, I'm a big fan of Micro-chemistry & Electrochemistry everything can be packed away easy !
Does it matter what filter paper you use can you like coffe filter paper?
Very informative!
Pls add video regarding lipid extraction
Very helpful, thank you!
Hi! I'm doing a project on granolas for one of my courses and one of the things that we're trying to evaluate is its peroxide value. In order to do so, we plan to do a lipid extraction. During our preliminary testing, we used petroleum ether as our solvent in the extraction and noticed that it took an extremely long time to evaporate (we ended up letting it sit overnight and came back to the lab the next day). I was wondering if you would know why this is happening - if another solvent would be the solution? Why is our solvent taking that long to evaporate? From research, my group members and I found that petroleum ether would work as well. Thanks!
Hello! I am also doing a project about rancidity of vacuum-fried watermelon. I would like to ask you if you can extract a lot of fat from the method which you did? Is the extracted fat used to determine the peroxide value enough? Thank you🙏
why is NaCl added to the sample before it is centrifudged
I want ask how Made sodium lauerth sulfate powder.rommy from Indonesian
Thank you!
hi, may i know what type of filter paper that you use in this video?
great!
Please what was the pore size of the syringe filter
How many tsp of starch mixed with how many ml of water in a test tube that I need for a demonstration?
It is just a saturated solution. In the video we used a small vial and added a spatula tip full of starch.
What solvents would you recommend to analyze beef sample?
P p p p p pp p]
thanks!
Short and precise
what is the purpose? So I know that it contains starch? now what? Am I seeing if the iodine is pure? I know these foods have starch? What's the purpose of this test other than to vet if the iodine solution is pure?
no ur seeing that the object contains starch...that's what the test is for. To see if it has a positive test for glucose you use benedicts reagent
The purpose is analysing how much starch foods have. There's probably a limit to putting starch in foods AND these tests are also used by food inspectors for investigating restaurants
Why we use it in cosmetics Laboratory? Please reply
splendid explanation! You arranged your words well and it was extremely easy to understand
This video is bussin 👁️👄👁️
Sir how to prepare iodine solution ??
Hi, can we separate only the filter paper from the syringe filter after filteration?
there are versions of syringe filters that are open-able so you can clean or change the (teflon) membrane
Congratulations for 500 subs 😀😀
Hello :) How can we use the mass of the exracted sample for further analysis?
helped a lot in my research task. thank you so much!
What size funnel are you using?
Do you use a qualitative lab filter for liquids you’re going to consume? Thank you.
Why is iodine solution able to test for the presence of starch though ?
Fact: you searched for it
I think limonene, being a hydrocarbon, could help with alcoholism, which is dangerous because of the horrendous withdrawal symptoms. I think maybe limonene could alleviate the symptoms long enough for a recovery to take place... in terms of chemical dependency. Psychological addiction is altogether a different beast.
this is kinda satisfying
This is so poggers. where is the onlyfans!!
very nice