Chem Help ASAP

Chem Help ASAP

Master AP, IB, and college chemistry in the subject areas of general, organic, analytical, and medicinal. With over 30 years of teaching and tutoring experience, we frequently post videos to help students and support teachers.

We have a website (www.chemhelpasap.com) and are active on Twitter (@ChemHelpASAP) and Facebook (facebook.com/Chem-Help-ASAP-106211130874519/). See direct links below.

end of 1st year - 215 subscribers, 463 hours, 16,200 views
end of 2nd year - 1,430 subscribers, 5,100 hours, 132,000 views
end of 3rd year - 3,510 subscribers, 14,200 hours, 377,000 views
end of 4th year - 6,570 subscribers, 26,500 hours, 713,000 views
end of 5th year - 10,560 subscribers, 43,000 hours, 1,200,000 views

Electrolytic Cells

Electrolytic Cells

Galvanic Cells

Galvanic Cells

Gibbs Free Energy

Gibbs Free Energy

Entropy

Entropy

Acid Base Indicators

Acid Base Indicators

Solubility Equilibria

Solubility Equilibria

Le Chatelier's Principle

Le Chatelier's Principle

Common Ion Effect

Common Ion Effect

Пікірлер

  • @tiraichbadfthr6454
    @tiraichbadfthr6454Күн бұрын

    how can you have bromine on a wedge but have it in the plane on the newman projection

  • @Hoppslol0
    @Hoppslol0Күн бұрын

    I might be a little to comment by late i mean frecking after 3 years cool video

  • @rashaselem
    @rashaselem3 күн бұрын

    Can i get this paper, please

  • @jdheezybenjamin7132
    @jdheezybenjamin713211 күн бұрын

    I liked how you said it’s a tough topic at the end…yes it is lol

  • @primetiger5458
    @primetiger545811 күн бұрын

    Great video really helped

  • @ChemHelpASAP
    @ChemHelpASAP11 күн бұрын

    Wonderful!! Best of luck to you in your studies.

  • @mihirpal8561
    @mihirpal856114 күн бұрын

    Is resmetirom for NAFLD or for NASH or for both?

  • @ChemHelpASAP
    @ChemHelpASAP14 күн бұрын

    Resmetirom is approved for NASH, not NAFLD. It might help on NAFLD, but the drug's efficacy was measured on steatohepatitis.

  • @bernadetteashleytirtadji5672
    @bernadetteashleytirtadji567215 күн бұрын

    U help a lottt! Thank you so much❤❤❤ currently binge watching your videos!!❤️❤️

  • @ChemHelpASAP
    @ChemHelpASAP14 күн бұрын

    Wonderful! I hope they help.

  • @ron-w5i
    @ron-w5i17 күн бұрын

    Very good video! I am currently looking for online small molecule databases for molecular docking screening and machine training. I noticed that you also have a lot of research papers based on molecular structure screening and then docking with specific proteins, but I didn't find the specific database name and access from the papers. Could you please show me some details on how to find these database resources for free (or for a fee) from the internet. Thanks~~

  • @ChemHelpASAP
    @ChemHelpASAP14 күн бұрын

    I am definitely not an expert on docking, but I do know that the most commonly used free molecular database is zinc (zinc.docking.org/). The Zinc database is specifically curated for searching and downloading in a form that can be readily imported into docking software. For full disclosure, I have never imported compounds from the Zinc database. When I have done modeling and docking, I have mostly modified ligands that are already bound in a protein (i.e., modified a PDB cocrystal structure).

  • @Jennytotheworld
    @Jennytotheworld18 күн бұрын

    I love the video

  • @ChemHelpASAP
    @ChemHelpASAP14 күн бұрын

    Thank you for watching, and I'm glad the video was helpful for you.

  • @AryanSingh-wp8df
    @AryanSingh-wp8df20 күн бұрын

    His voice reminds me of georgie from young sheldon 😂❤

  • @ChemHelpASAP
    @ChemHelpASAP14 күн бұрын

    poor georgie!

  • @Alisaf0103
    @Alisaf010321 күн бұрын

    Great explanation thanks ❤

  • @2010RSHACKS
    @2010RSHACKS27 күн бұрын

    Chemists are dumb. Ethyl=eth-uhl, hexyl=hex-uhl, sulfonyl=sulf-on-uhl, alkyl=alk-uhl, carbonyl=carbon-eel.. what?!

  • @prasannjogia575
    @prasannjogia57528 күн бұрын

    Can we do this as a one pot reaction like starting from benzyl chloride + azide + acetylene + catalyst?

  • @ChemHelpASAP
    @ChemHelpASAP27 күн бұрын

    I am sure that somebody has tried to generate the alkyl azide in situ, but I haven't seen it. I am a bit wary of forming different metal-azide salts, which doesn't happen if you pre-form the alkyl azide.

  • @sabikunnahershohagi
    @sabikunnahershohagi28 күн бұрын

    great lectures. thanks

  • @lillelort1111
    @lillelort1111Ай бұрын

    Kongen

  • @ogbenchmarks7127
    @ogbenchmarks7127Ай бұрын

    Bare hyggelig

  • @bepositive2185
    @bepositive2185Ай бұрын

    At 5.05 time stamp, why negative charge came near lone pair???

  • @ogbenchmarks7127
    @ogbenchmarks7127Ай бұрын

    That negative charge is the formal charge on the carbon atom - the carbon atom that bears the lone pair. Keep in mind that the carbon also has a C-H bond (not shown), so the carbon has three bonds (one to the carbon chain, one to oxygen, one to hydrogen) and a lone pair. That gives it a formal charge of -1.

  • @queenbeequeenb9
    @queenbeequeenb9Ай бұрын

    Clear amazing 🎉

  • @neof.m7517
    @neof.m7517Ай бұрын

    informative

  • @merttantari7912
    @merttantari7912Ай бұрын

    Thank you very much, in my opinion that was one of the best explanations of this topic on net if not the best one!!

  • @Lxiba03
    @Lxiba03Ай бұрын

    Please could you provide a sample of your results table

  • @themanwiththebeard4632
    @themanwiththebeard4632Ай бұрын

    Thank you for saving this med student last minute 🙏

  • @ruchikamourya9982
    @ruchikamourya9982Ай бұрын

    I was confused why my reaction mixture is showing 2 spots extra at 1 hr in TLC I got the answer.......thank you so much

  • @gabrielsiwakwi7182
    @gabrielsiwakwi7182Ай бұрын

    I have understood this in the space of 12 I attended lectures all term without understanding a thing

  • @ChemHelpASAP
    @ChemHelpASAPАй бұрын

    I am so glad you found it helpful! Kinetics is a tough topic!

  • @cribs3819
    @cribs3819Ай бұрын

    thank you! this helped a lot!!

  • @charlesvincentfamilar9720
    @charlesvincentfamilar97202 ай бұрын

    Thanks. Really helped a lot. Great choice of problems.

  • @rachelleshelby9347
    @rachelleshelby93472 ай бұрын

    You're a lifesaver and I cannot believe there aren't more views and likes. You're extremely appreciated by me!!

  • @ChemHelpASAP
    @ChemHelpASAP2 ай бұрын

    I am glad you found it helpful!

  • @yasminehachicha5214
    @yasminehachicha52142 ай бұрын

    You're a life saver thank you

  • @ogbenchmarks7127
    @ogbenchmarks71272 ай бұрын

    You are very welcome! Take care.

  • @noname-wg5xq
    @noname-wg5xq2 ай бұрын

    what if the parentheses is first?

  • @shafeekbuhlak5450
    @shafeekbuhlak54502 ай бұрын

    thank you very much for this video.. If I want to modify one design molecule is there any parameter (add or change group in the chemical formula) that can raise the hERG to be more than 10 (less toxic)?

  • @Simran-jd4wi
    @Simran-jd4wi2 ай бұрын

    Thank you buddy 🎉

  • @allprivateandgovernmentjob8504
    @allprivateandgovernmentjob85042 ай бұрын

    Why the tertiary Alkyl halides undergoes the SN2 reaction in the presence of NaBH4 Please can you me out to understand that

  • @EinarGrondal
    @EinarGrondal2 ай бұрын

    Very concice and clear. Also quit a professional look to the video. Bravo! Tango - foxtrot even!

  • @rahulmalik4887
    @rahulmalik48872 ай бұрын

    Is it use in alcohal hepatitis

  • @miladarbabi1564
    @miladarbabi15642 ай бұрын

    thanks

  • @calvingoldsmith3963
    @calvingoldsmith39632 ай бұрын

    Perfect! Every time I recrystallize NBS, I get nervous about the generated bromine during the heating process, but I guess it is all a part of it.

  • @Srutee-qx3ok
    @Srutee-qx3ok2 ай бұрын

    Hi! Is there a difference between shape and geometry? Do we need to consider the lone pairs while determining the shape?

  • @ChemHelpASAP
    @ChemHelpASAP2 ай бұрын

    I consider shape and geometry to be interchangeable (but follow the lead of your instructor). Bond angle, however, is different. The lone pair does influence the geometry, but lone pairs are specifically included in the geometry. NH3 is trigonal pyramidal. "Trigonal" captures the hydrogens. "Pyramidal" gets the hydrogens and the peak of the nitrogen. The lone pairs, however, are not specifically called out by the geometry. The lone pairs do affect the geometry.

  • @DuncanIdahogo
    @DuncanIdahogo2 ай бұрын

    Very helpful video. I'm glad I found it

  • @ChemHelpASAP
    @ChemHelpASAP2 ай бұрын

    Thank you and welcome to the channel.

  • @ozlemkutlu6528
    @ozlemkutlu65282 ай бұрын

    Thank you for brief and useful information. I will be watching for remembiring sometimes.

  • @ChemHelpASAP
    @ChemHelpASAP2 ай бұрын

    Glad it was helpful!

  • @pvr2807
    @pvr28073 ай бұрын

    You're incredible! Your videos are fantastic! I wish every teacher could be as pedagogically skilled as you are.

  • @ChemHelpASAP
    @ChemHelpASAP2 ай бұрын

    Thank you for your support. I'm glad you find the videos helpful.

  • @jetta61
    @jetta613 ай бұрын

    I am a Chemistry PhD student who is currently taking an NMR Spectroscopy course. I have to say, you did a great job at explaining the problem in simple terms. Good job!

  • @ChemHelpASAP
    @ChemHelpASAP2 ай бұрын

    Thank you so much for the feedback. (I hope your PhD courses and research are going well.)

  • @nourelhodaayad4432
    @nourelhodaayad44323 ай бұрын

    Please the link of the paper that ur procdure from...or just tell me the ratio of the alkyne , azide, cu(pph3)No3 , toulen.. u used

  • @adrianalimi
    @adrianalimi3 ай бұрын

    If the oxidative cleavage is O3/Zn-H2O, would that be reductive or oxidative work up?

  • @DannyFang-oj3td
    @DannyFang-oj3td3 ай бұрын

    Hello sir can you please suggest me a polymer NMR reference book I was given a task to find H1 and C13 NMR of polyvinyl chloride, polystyrene but I am unable to find it on browser

  • @yousufothman8546
    @yousufothman85463 ай бұрын

    Thank you very much

  • @abodyplays5524
    @abodyplays55243 ай бұрын

    Hi I wanna more info please 😊

  • @ChemHelpASAP
    @ChemHelpASAP3 ай бұрын

    Sure! Email me at [email protected] and I can give you more details about the prep courses I am currently running!

  • @joshyu1124
    @joshyu11243 ай бұрын

    Would be interesting to know its solubility and permeability

  • @jt2506productions
    @jt2506productions3 ай бұрын

    If my R group on the electrophile contains Alpha Hydrogens, can I do a standard Aldol RXN and then dehydration even though it won't work for condensation?

  • @ChemHelpASAP
    @ChemHelpASAP3 ай бұрын

    Generally, yes, but you can still run into problems. The late 1970s and early 1980s were full of research trying to fix this problem, which is essentially making sure that the ketone enolate that is formed initially does only what you want it to do. The real problem is that the ketone enolate is not just a nucleophile but also a base. As a base, it can deprotonate other alpha-protons in the reaction, including an alpha proton on the electrophile (if present). The stoichiometry of the base (LDA) is also very important. The reaction can be quite complex, and my treatment in these videos is just an introduction.

  • @ik5377
    @ik53773 ай бұрын

    Clear and concise video, thank you

  • @yu-hsiangcheng1282
    @yu-hsiangcheng12823 ай бұрын

    Thank you it’s clear and helps a lot!

  • @ChemHelpASAP
    @ChemHelpASAP3 ай бұрын

    Great. Thanks for watching.

  • @andywong1706
    @andywong17063 ай бұрын

    Is there any possibility that you can introduce some prodrug design and synthesis work?