Leah4Sci does it again! I have been struggling to understand this for a week and now 15 minutes later I finally do! Thank you!

@Leah4sci

9 ай бұрын

Wonderful! You are so very welcome!

I like how you used different colors to help visualize the movement of the electrons and atoms. That's why I now follow your habit and use colored pens to take notes. 😃

@Leah4sci

2 ай бұрын

I love using color; it find it so much easier to see and understand. So glad it's helping you, too!

I didnt know that how a lone pair forms bond with hydrogen But u explained that the nitrogen N takes both the electrons involved in N-H bond so hydrogen is not left with any electrons thats why it forms a bond with lone pair.... Really appreciate that 😊

@Leah4sci

3 жыл бұрын

You're very welcome!

Thank you very much for the clear explanation. Subscribed!

@Leah4sci

3 жыл бұрын

You're welcome! Thanks for the sub!

Wonderfully explained.. thanks

@Leah4sci

2 ай бұрын

You're so welcome!

Thank you teacher 😊 it was very helpful

@Leah4sci

3 жыл бұрын

You're very welcome!

You are the best tutor , I like the way you teach

@Leah4sci

3 ай бұрын

I appreciate that, thank you! I'm so happy to help.

These videos are gold!

@Leah4sci

4 жыл бұрын

Thanks!

@PunmasterSTP

Жыл бұрын

Or are they Pt, Pd or Ni? 😎

Hello ma'am, I am preparing for NEET Examinations (Indian entrance examination to enter medical colleges), organic chemistry plays a very vital role and you made me understand the topic easy... Thanks

@Leah4sci

10 ай бұрын

You're very welcome!

love this!!!! Understood it so easily thank youuu :)

@Leah4sci

5 ай бұрын

You're so welcome!

Hey, your videos are awesome. I am a bit confused over why we use palladium or nickel for every reducing reaction. Can you please help me out? :)

@Leah4sci

2 жыл бұрын

You can use other metals too

Thank you so much for this information 👍👍👍👍👍❤️❤️❤️❤️❤️

@Leah4sci

2 жыл бұрын

You're so welcome!

very well explained

@Leah4sci

3 ай бұрын

Glad you think so!

Mam which one can undergo addition reaction most readily; Alkene Or Alkyne?..

@Leah4sci

3 жыл бұрын

Thanks for asking. Alkynes undergo hydrogenation reactions and nucleophilic addition reactions more readily than alkenes.

Amazing explanation❤ I felt problem in understanding reaction of na in liq ammonia

@Leah4sci

Ай бұрын

Glad you found it helpful, what about the reaction of na in liq ammonia did you find difficult to understand?

What of in a situations where you nees to have an alkene with 2 double bonds? How does it go

@Leah4sci

10 ай бұрын

How does the mechanism go? Unfortunately, I don't offer tutoring over social media. For help with questions like this and more, I recommend joining the organic chemistry study hall. Details: leah4sci.com/join or contact me through my website leah4sci.com/contact/

Thx for these videos ur better than my professor

@Leah4sci

Жыл бұрын

Glad you like them! I'm always happy to help.

3:35, where do the blue hydrogens come from?

@Leah4sci

4 жыл бұрын

Hydrogen is required for this reaction, typically added in the form of H2 gas. H2 will first bind to the metal catalyst.

why does H2/Pd fully reduce the alkyne chain ??? why cant it stop at an alkene

@Leah4sci

2 жыл бұрын

The short answer: It is too strong of a reducing agent to stop at the alkene. We do have other methods of getting the alkyne to an alkene, namely H2 with the Lindlar's catalyst. Make sure to take a look at my redox cheat sheet at leah4sci.com/orgo-oxidation-reduction-reactions-study-guide-cheat-sheet/

Hello so overall reaction of trans alkene formation consumes 2 eqv Na & 2 eqv NH3?

@Leah4sci

2 жыл бұрын

Yes, per every one mole of alkyne that is reacted.

@casualcasual1234

2 жыл бұрын

@@Leah4sci oh thanks a lot

in what situation would you use 2H2 ?

@Leah4sci

3 жыл бұрын

Great question! You use 2 moles of H2 as a reagent when performing a catalytic reduction of an alkyne to an alkane. This is because completely reducing all of the triple bonds in the sample to single bonds would require a 2:1 ratio of H2 to alkyne.

Instead of radical breaking, can we not visualize that the single electron attacks the alkyne carbon from the back (antibonding orbital) in SN2 fashion pushing the lone pair in the oppsite side to adjacent carbon as the original carbons bonding orbital changes to anti bonding one. In short a SN2 attack by a single electron on alkyne leading to trans lone pair - radical alkene intermediate.

@Leah4sci

10 ай бұрын

This is too complex of a question for a KZread comment. I stand by the accuracy of the mechanism in this video. If you would like to ask further questions, draw your proposed mechanism and send it to me through my website, along with your question, at Leah4sci.com/contact

what if 1 eqv of h2 PD?

@Leah4sci

5 жыл бұрын

Discussed in the video, watch it again

Good video and Can you give me some videos on reduction of acids

@Leah4sci

5 жыл бұрын

Thank you. PLease check my channel

QUEEN part 3

@Leah4sci

Жыл бұрын

:)

Yeah trans radical is more stable but how can a double bond rotate ?

@Leah4sci

3 жыл бұрын

The double bond is not rotating. It’s more of a question of where the electron cloud containing the radical will gravitate. Non-bonding electrons (like the radical) are not tied down in space. According to the rules of VSEPR theory, it will choose to distance itself from the newly-formed lone pair as much as possible. Thanks for watching and asking!

What is the exact composition of lindlar reagent

@Leah4sci

2 жыл бұрын

Its primary make-up includes palladium metal. However, its composition is not required knowledge in most orgo classes. As long as you know WHAT the Lindlar catalyst does and what product it would create in a given reaction, you should be in good shape.

@hwiatslgeord2887

2 жыл бұрын

@@Leah4sci thanks 😊

if alkenes can be reduced to alkane does alkanes can be reduced to alkens?

@watsoncrick6071

3 жыл бұрын

alkanes can't be reduced...reduction is addition of hydrogens.. there's no more space in alkanes to add some more hydrogens.

@Leah4sci

11 ай бұрын

Agree with the other comment. Alkanes cannot be further reduced. There is no position for additional hydrogens to be added.

Dissolving metal reduction? More like "Delightful videos; thanks for them!" 👍

@Leah4sci

Жыл бұрын

Glad you like them!

@PunmasterSTP

Жыл бұрын

@@Leah4sci For sure; they’re hydrogenawesome!

Amazing explanation!

@Leah4sci

3 жыл бұрын

Glad it was helpful!

Great 👍

@Leah4sci

Жыл бұрын

Thank you!

you're the best that's all I have to say

@Leah4sci

2 жыл бұрын

Wow, thanks!

@hajarrayhanaelaqil1988

2 жыл бұрын

@@Leah4sci my pleasure

Awesome Mam

@Leah4sci

Жыл бұрын

Glad you liked it, thanks for watching!

@sadiakaramat8835

Жыл бұрын

@@Leah4sci Yours welcome😊

Queen.

@Leah4sci

3 ай бұрын

Thanks!

Good mam

@Leah4sci

Жыл бұрын

Thanks a lot

A million dollar video

@Leah4sci

Жыл бұрын

WOOHOO!!!

Soooooooooooooper👏👏👏🙏🙏🙏👌👌👌🤗🤗🤗😎

@Leah4sci

4 жыл бұрын

Sooooooper dooooooooper!

:)

@Leah4sci

4 ай бұрын

thanks!

U sounds like margot.robbie 😂

@Leah4sci

2 жыл бұрын

I'll take that as a compliment :)