i think all professors need to take lessons from you.. you are so direct to the point , less complicated and only teaches the things we need to know! you are awesome. more power :)
I am struggling with all the arrows, the electrons & etc., until I met you! Your video is so helpful for me, and now I'm able to at least carry out the mechanism without too much memorizing!
To say you are a genius is an understatement. A whole term lecture summarised in 15mins. Thanks so much for your video. So what's the titles of other videos for organic chemistry?
I was good at this, but overtime I found myself struggling a bit with this. Came here to revise and you nailed it, Leah! You have a sweet voice :) Additionally, I wanted to ask you for some tips regarding organic chemistry. For example, memorizing named reactions (reagents/temp/catalysts), reaction mech, etc. Even after writing repeatedly, I cant memorize it. I find physical chemistry better than organic but organic isnt hard at all (like its percieved to be). I just need to memorize and practice general chem and Im good to go. I really need tips (since ill be giving a national exam too). Thank you very much
You are the woman! Thank you so much for these videos! My professor talks really fast due to the fact that we had many snow closings and everyone disrupts her with off topic chats. So it was hard to hear her. But you broke it down even further. Thank you so much! I didn't get resonance until now that I see it. The electrons on the most negative atom will move to the closest positive carbon.
I will definitely be watching more of your videos! You explain all of this is a way I finally understand! I wish my OChem professor could watch this and take notes! Thank you so much!!!
Jan 6, 2014. towards the end of ochem I we began discussing mechanism and I sort of didn't do too hot but managed to get a B for the class. After watching your video, I'm kicking myself because its basically following and accounting for electrons. Your idea to do brief FC checks to stay on course is great.
It's a blessing to have the skills to teach. Thank you for these videos. Your style of teaching works. You help visualise and help with concepts. Cheers!
Thank to you very much for this marvelous explanation,i think that it has really stupendous and favourable impact on students' education including me))
Can you tell how can we easily understand organic reactions without memorizing them ? Is it important to learn all the tempertures and reagents in a organic reaction? I will feel happy if you help me with this.
regarding the mechanism arrows continued 12:54, why didn't you add the halogen to the positively charged carbon..? I thought that the positive charge carbon will be attracted to the negative halogen.? please explain ):
Yes, you are right. That is the correct continuation of the hydrohalogenation reaction mechanism. But as I say at 13:05: “I will discuss the mechanism of this reaction in greater detail in an upcoming video.” You can find that video by visiting leah4sci.com/hydrohalogenation Thanks for commenting!
Yes and no, yes if following Markovnikov’s rule for an asymmetrical starting molecule, no if there is symmetry so that the 2 sp2 carbons are exactly the same
No, we wouldn't be able to do that because the next door carbon would be exceeding the octet rule with five pairs of bonding electrons - 1 single bond and 1 double bond to carbons, as well as 2 single bonds to hydrogens.
For a second I thought element X was reference for Neon, but Neon need 8 electrons to fulfill its octet, where did you get X from and why does it have 6 electrons initially? I know you said its a Halogen but I'm really confused??? Where? Other than that amazing video!
Yes, I apologize. It’s not a very smooth transition in the video. Suffice it to say that an electrophile is a positive or partially positive species, like “a proton or the positive end of a nitronium or hydronium ion”.
Think of it this way: The electrons in a regular bond are stuck between 2 atoms and less likely to be distracted by what's around them. But electrons in a pi bond are hovering above and below and more easily influenced by their environment thus more likely to attack positives within reach
@@Leah4sci oh my. thanks for the reply haha! funny to see my old comments, I remember struggling with chem. I'm doing master's dissertation on tribal nutrition now :)
On the example w/5 carbon chain/ring w/O as the substituent, How wld I kno to push the electrons from the original double bond to a lone pair? I wldve thought it wld simply become a double bond further around the chain/ring... Help me someone 😟
Orgo 2 and to be honest i've been struggling, but your videos are definitely helping alot so thanks again :) I have my second midterm in a couple weeks so fingers crossed for that one :)
lol, you're one of the few people that tell me to go faster, I usually get slow down. :) You can go to settings and change the speed to suit your needs.
Will you marry me lol...you helped me out sooooo much. When i become super rich in the future, you'd definitely be one of the people i would shower with gifts :)
Your science is perfect, but the pedagogy is horrible. In order to maximize the number of people you try to teach you need to slow way down even if it means breaking this up into a couple of videos. Just constructive criticism, you seem to care about teaching and the world definitely needs more of them.
She literally explains topics that I've been having a hard time since the beginning of the semester in less than 15 minutes. THANK YOU!!!
Ericah, Great things Happen When people Meet. The Challenges you face have solutions in books you have not read and people you have not met.
@@ruteshmbatemba4466 that's beautiful and deep °-°
Yay, so glad I could help!
i think all professors need to take lessons from you.. you are so direct to the point , less complicated and only teaches the things we need to know! you are awesome. more power :)
Thanks so much, I appreciate that!
I am struggling with all the arrows, the electrons & etc., until I met you! Your video is so helpful for me, and now I'm able to at least carry out the mechanism without too much memorizing!
Glad I could help understand! That is the true key to memorizing, understanding it so well that you know what to do what ever is thrown at you.
Simultaneously concise and yet so detailed at the same time. Very conducive to to my learning style. Awww yeeeeeahhhhh
Glad you liked it!
To say you are a genius is an understatement. A whole term lecture summarised in 15mins. Thanks so much for your video. So what's the titles of other videos for organic chemistry?
Aww thanks so much for your kind words!
I am studying pharmacy and organic chemistry is a module that I must pass to graduate. this helps sooooo much !!
So glad I could help!
You are a freaking boss, you have no idea how much this helps. Seriously I owe you big time!
Yay, so happy to help!
Thank you for sharing this! This is helpful to me especially we're self study right now because of the pandemic.
Glad it was helpful!
I was good at this, but overtime I found myself struggling a bit with this. Came here to revise and you nailed it, Leah! You have a sweet voice :)
Additionally, I wanted to ask you for some tips regarding organic chemistry. For example, memorizing named reactions (reagents/temp/catalysts), reaction mech, etc. Even after writing repeatedly, I cant memorize it. I find physical chemistry better than organic but organic isnt hard at all (like its percieved to be). I just need to memorize and practice general chem and Im good to go. I really need tips (since ill be giving a national exam too).
Thank you very much
Here's the approach I take for memorization leah4sci.com/memorize
You are the woman! Thank you so much for these videos! My professor talks really fast due to the fact that we had many snow closings and everyone disrupts her with off topic chats. So it was hard to hear her. But you broke it down even further. Thank you so much! I didn't get resonance until now that I see it. The electrons on the most negative atom will move to the closest positive carbon.
I'm so glad I was able to help clear the gaps, especially when your teacher has to try to get so much information into a short period of time.
She teaches better than my organic chem Professor. Thank you UA-cam
You're very welcome!
thanks so much Leah, I really needed someone to break that down electron by electron. as I suspected understanding the mechanism was the key.
You're so welcome!
I will definitely be watching more of your videos! You explain all of this is a way I finally understand! I wish my OChem professor could watch this and take notes! Thank you so much!!!
You're very welcome, glad to help!
the best chanel for learning organich chemistry.
Glad you think so!
This is so helpful! Thank you so much!! I'm only four weeks into the course but I was starting to feel so lost, thank you for clarifying things T-T.
Glad I could help!
Excellent organic mechanism description...I'm so ready for Ochem II. I will definitely continue to watch your videos.
Jan 6, 2014. towards the end of ochem I we began discussing mechanism and I sort of didn't do too hot but managed to get a B for the class. After watching your video, I'm kicking myself because its basically following and accounting for electrons. Your idea to do brief FC checks to stay on course is great.
So glad I was able to help you!
Obviously this is WAY late, but a B in orgo is like an A in any other course. Be proud!
Thank you so much Mam 💗 this lecture has cleared all my doubts and confusions about organic chemistry.. Love and respect from Pakistan 🇵🇰👍
So happy to help!
She made me pass my exam
Hello! Aap bharat se ho na (aise is liye likha h taki aur kisi ko samajh na aaye haha) ?
i hope i do too:(
happy to help!
thank you so much!! im now positive im gonna pass my org chem exam
You're very welcome!
Still the best thankyou mam I was confused in this topic but now my doubts are cleared 👏
Happy to clear it up for you!
LEAH I LOVE YOU SOOOOOOOOOOOOOOOOOOOOOOOOO MUCH!!!!!!!!!!
Awww thanks!
I dig everything and all I found helpful is this,take luv❤
Yay! I'm so glad it helped you!
It's a blessing to have the skills to teach. Thank you for these videos. Your style of teaching works. You help visualise and help with concepts. Cheers!
You're so very welcome, I'm glad that my way of teaching helps make it clear for you!
wow. this is absolutely incredibly awesome.
A+
Leah knows what's UP
Thanks!
Leah the Journey has just begun.
Excited to be a part of it!
Love the video! thank you for clearing the whole arrow pushing up, you saved me for my midterm! Keep up the great work :)
So glad I was able to clear things up!
The best explanation of this topic!
Glad you enjoyed it
this video meant a lot to me
a perfect video to understand basics
thank u soooooooo much LEAH ! yeah!
You are so very welcome!
My right ear found this very informative thank you
Your right ear is very welcome :)
@@Leah4sci sorry, i thought the audio was only for one ear but turns out my airpod was just dead 😭😭😭
Im crying that I havent got this for 3 weeks then I found her. Thank you...
Tears of joy?
Very very useful! Whets my appetite for rx mechanisms!
Glad to help!
I'm so happy I found this.
Thank you !
You're very welcome!
I cannot download the eBook, is it no longer there? Thank you for this wonderful and informational video!
Yes, it's still there: orgosecrets.com
The video ws really good it really helped me understanding resonance concepts.tysm
You're welcome! Glad to help! :)
Where have you been all my life! that was excellent
Glad you liked it!
Thank to you very much for this marvelous explanation,i think that it has really stupendous and favourable impact on students' education including me))
You're very welcome!
Mam This was really helpful Thank You!!!!
You're welcome! Glad it was helpful!
Can you tell how can we easily understand organic reactions without memorizing them ? Is it important to learn all the tempertures and reagents in a organic reaction? I will feel happy if you help me with this.
For help with this and more, I recommend joining the organic chemistry study hall. Full details: leah4sci.com/join
In your example at the beginning of this video, am I correct that this is a coordinate bond since atom A contributes both electrons?
That is correct!
you really help me a lot. thanks
You're welcome!
seiously you saved me from a brain tumour. this is course. thaaanxxxx
Glad the video helped! You're welcome! All the best!
nice really helped me in organic pharmaceutical chem
Glad to hear it!
regarding the mechanism arrows continued 12:54, why didn't you add the halogen to the positively charged carbon..? I thought that the positive charge carbon will be attracted to the negative halogen.? please explain ):
Yes, you are right. That is the correct continuation of the hydrohalogenation reaction mechanism. But as I say at 13:05: “I will discuss the mechanism of this reaction in greater detail in an upcoming video.” You can find that video by visiting leah4sci.com/hydrohalogenation Thanks for commenting!
so young , so intelligent , you are very impressive young lady .
Thanks so much
You have saved my life.
So glad to help!
Wow now I understand better thanks watching In 2020
You're welcome!
A great one .. thank you
You're welcome!
Want more lectures on pure resonance please needed thanku for the concepts
For help with this and more, I recommend joining the organic chemistry study hall. Full details: leah4sci.com/join
Because of you I won chemistry.
Glad it helped!
The video was very helpful. Thank you so much..
You're so very welcome!
I am that student who is in Organic Chemistry II and still don't know how to push electrons.
That's not good! Did the video help?
Leah4sci yup now I know how to
I go to UBC (University of British Columbia), in Canada. And I'm currently studying science!
Thanks for commenting!
Yes indeed is useful video
Glad I could help
Wow, thankyou! I have a University Midterm tomorrow!
You're so welcome, happy I could help!
Thanks mam for this helpful video
You are very welcome 😊
this was awesome.............u re d best
Thank you!
Thank You!
You're very welcome!
Thank you so much. This was incredibly helpful.
You're welcome, I'm glad I could help!
At 12:07 does it matter which carbon gets the hydrogen?
Yes and no, yes if following Markovnikov’s rule for an asymmetrical starting molecule, no if there is symmetry so that the 2 sp2 carbons are exactly the same
She's the best☆☆
Thanks!
man you are so good thank u thank u thank u
You are welcome!
3:21 formal charges
Is that a question?
This is interesting❤
Glad you enjoy it!
great teacher!!!!
Thank you!
Great video!
Glad you like it!
very very useful .. thank you
You're so welcome, I'm happy to help!
Hi! Currently taking organic chemistry. For the second example of cyclopentane, could you add the double bond in the structure instead of a lone pair?
No, we wouldn't be able to do that because the next door carbon would be exceeding the octet rule with five pairs of bonding electrons - 1 single bond and 1 double bond to carbons, as well as 2 single bonds to hydrogens.
For a second I thought element X was reference for Neon, but Neon need 8 electrons to fulfill its octet, where did you get X from and why does it have 6 electrons initially? I know you said its a Halogen but I'm really confused??? Where?
Other than that amazing video!
You're welcome! For help with this and more, I recommend joining the organic chemistry study hall. Full details: leah4sci.com/join
You are a ninja warrior, so precise and focused! Thank you.
a ninja warrior! lol! Thanks! :)
thank you, it was really well explained
You're welcome, so happy I could help!
This is amazing
Glad you like it!
love it !
Awesome! So glad you like it!
Thank you very much!
You are very welcome!
what is the reason in which the alkene compound can act as nucleophile?
See video 1 in the alkene reaction series leah4sci.com/alkene-reactions/
Are there some practice questions on your website???
You can find that and more using my syllabus guide: leah4sci.com/syllabus
your video cut out at 8:46 when you were giving examples of electrophile
Yes, I apologize. It’s not a very smooth transition in the video. Suffice it to say that an electrophile is a positive or partially positive species, like “a proton or the positive end of a nitronium or hydronium ion”.
in the second example why did the electron move from oxygen to the carbon atom although oxygen is more electronegative?
At which time stamp?
at 5:35
Review the resonance video series: leah4sci.com/resonance-structures-in-organic-chemistry/
thankyou!!!
You're welcome!
11:10 why are pi-bonds "more negative"? 🤔
You say it is because "They go above and below the molecule". But how does that make them more negative?
Think of it this way: The electrons in a regular bond are stuck between 2 atoms and less likely to be distracted by what's around them. But electrons in a pi bond are hovering above and below and more easily influenced by their environment thus more likely to attack positives within reach
@@Leah4sci oh my. thanks for the reply haha! funny to see my old comments, I remember struggling with chem. I'm doing master's dissertation on tribal nutrition now :)
On the example w/5 carbon chain/ring w/O as the substituent, How wld I kno to push the electrons from the original double bond to a lone pair? I wldve thought it wld simply become a double bond further around the chain/ring... Help me someone 😟
At which specific point in the video?
LEAH FOR PRESIDENT
Thanks but no thanks!
Very helpful
Glad you liked it!
will you be making future videos on mechanisms?
Sure, check this list: ua-cam.com/play/PLaySzQJTCO1nIxREoUa_KT8FP0tUAxckG.html
Is this are curly arrow rules mam?????
yes
Thank you madam
You're welcome
you are the best :)
Thanks!
you are the best
Thanks!
very helpful
keep up the good work ! :-)
Thank you!
Thank alot
You're so welcome!
thnx a lot
You're welcome!
மிக்க நன்றி
You're very welcome!
ty
You're welcome!
***** You're awesome thanks so much for these videos...I can't thank you enough...I wish you were my Orgo 2 lecturer :)
Orgo 2 and to be honest i've been struggling, but your videos are definitely helping alot so thanks again :) I have my second midterm in a couple weeks so fingers crossed for that one :)
You're so very welcome!
im thinking your pace needs to go faster, as long as you speak clearly it should be fine i think. also hoping you can do more complicated examples
***** thank you Leah. Really appreciate the help =D
lol, you're one of the few people that tell me to go faster, I usually get slow down. :) You can go to settings and change the speed to suit your needs.
great
thanks!
I LOVE YOU
Thanks!
🙏🏻🙏🏻👍🏻👍🏻...
:)
But i have to see this video couple of times.. cause I hate chemistry
Watch it as often as you need!
Will you marry me lol...you helped me out sooooo much. When i become super rich in the future, you'd definitely be one of the people i would shower with gifts :)
lol, thanks for that!
Your science is perfect, but the pedagogy is horrible. In order to maximize the number of people you try to teach you need to slow way down even if it means breaking this up into a couple of videos. Just constructive criticism, you seem to care about teaching and the world definitely needs more of them.
*****
I disagree. I think the pace is just fine. Maybe even a bit slow.
Thank you for your constructive criticism, I appreciate it, and as I've learned this craft I've definitely tried to break things up more.
lol, to each their own, thank you so much for your support!