Leah's course can definitely make the difference between understanding the material which is required to get a really good grade and trying to memorize the new york phone book. I shared some of Leah's videos with chemistry professors and friends of mine steeped in organic chemistry and the consensus is Leah's course is exceptional. As a bar candidate, I sought out the best bar prep course which definitely made taking the bar exam a one time event. I have no doubt that Leah's course will do the same for orgo students.

@Leah4sci

2 жыл бұрын

oh wow thank you so much!! I really appreciate the kind words :) hahaha please don't memorize the phone book, sounds terrifying!!

Thank you so much for this! Can't wait for your video on hydroboration-oxidation of alkynes!

@Leah4sci

2 жыл бұрын

This one? leah4sci.com/hydroboration-oxidation-of-alkenes/ Happy to help!

Thank you so much Leah!!! I love you!!

@Leah4sci

Жыл бұрын

you're welcome.

Great video!

@Leah4sci

2 жыл бұрын

Thanks!

This really helps me in my exams, thanks. At least this isn't the most difficult thing in High School :P

@Leah4sci

2 жыл бұрын

Perfect timing!

Ok she's definetly following a syllabus, my class legit just covered this today kek

@Leah4sci

2 жыл бұрын

Wow talk about perfect timing! I asked my students what to cover next so I'm guessing quite a few of them are following a similar pace/curriculum as your professor. Glad this came at the right time

Thank you Mam .😊

@Leah4sci

11 ай бұрын

you're so welcome

Thanks for such wonderful explanation, but can you please explain how Hg+ was removed in the final step

@Leah4sci

2 жыл бұрын

As you see in the text of the video, that step is typically not taught in the undergraduate Organic Chemistry curriculum. Since 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/

What a video

@Leah4sci

Жыл бұрын

Thank you! I hope you've liked it.

MAM PLEASE MAKE A VIDEO ON HOW TO MAKE STRUCTURES OF COMPOUNDS, NOT FOLLOWING THE OCTET RULE,...... AND HOW TO IDENTIFY WHEN IN A STRUCTURE WE HAVE TO REPLACE + AND - WITH A COVALENT BOND AND WHEN WITH A COORDINATE....... 🙏🙏🙏

@Leah4sci

2 жыл бұрын

Thanks for the recommendation. I post free videos as I have time and am always looking for suggestions. For more help with this topic in the meantime, contact me through my website: leah4sci.com/contact

Very helpful tutorial but What happened to the electrons from the Hg+ when broken? You did not show the electrons in the mechanism. I'm bit curious about this.

@Leah4sci

Жыл бұрын

Thank you! Because this step is quite complicated and not taught in most undergrad classes, I simply provided an overview of what happens here without showing how the specific atoms and electrons make it happen.

I studied from u 2 years back in my high school

@Leah4sci

2 жыл бұрын

Oh wow, you learned all this in high school? that's impressive!

@pranjalpagaria322

2 жыл бұрын

@@Leah4sci Ya , I am from India

Helpful for my High school exams next month thank you

@Leah4sci

2 жыл бұрын

Wow! Where do you go to school that you're learning this in high school?

@atharva4180

2 жыл бұрын

@@Leah4sci India. Preparing for JEE Advance. Also, what do you mean preparing in high school? When do you learn all this stuff?

@Leah4sci

2 жыл бұрын

Undergrad. We barely did any chemistry (or difficult science) in high school

@atharva4180

2 жыл бұрын

@@Leah4sci Oh, so I guess it comes under "easy" category in undergrad if it is taught in high schools. Which year undergrad is it taught?

HgSO4 is a weak electrolyte, so the concentration of Hg^2+ ion will decrese in presence of H2SO4 due to common ion effect. Why can't we use other acid like H3PO4.

@Leah4sci

2 жыл бұрын

That's an interesting question. I don't believe HgSO4 is a weak electrolyte. Even so, the presence of the strong acid is not necessary for this reaction to proceed. Any mercuric ion in solution will lead to an oxymercuration reaction with the alkyne.

At 6:25 you simply Break the Hg-Bond and you give the lone pair to the carbon. Isnt that wrong? You would have a 5bonded carbon and Just one H at the carbon... I think it would be better to understand of you attack H3O+ with that Lone pair to get to the ch2group.

@Leah4sci

2 жыл бұрын

That part of the mechanism is more complicated than what I show, that's why I have a note on the screen that it's not required. My students typically don't learn this and are simply told to skip that step. It is awesome though to recognize that it wouldn't happen exactly as shown

This reaction is catalytic acidic hydration not oxymercuration-demercuration

@Leah4sci

2 жыл бұрын

I disagree. Though both would produce the same products, the difference is in the reagents used (and the mechanism). Hydration of an alkyne in acid would use only H2SO4 in water, while oxymercuration uses the HgSO4.

@pulkitbhardwaj7055

2 жыл бұрын

@@Leah4sci if you use only H2SO4 then the reaction will not proceed as H+ is competitively weak nucleophile and not capable to attack on triple bond (Alkyne)