6 ай бұрын
6 ай бұрын
7 ай бұрын
9 ай бұрын
2 жыл бұрын
2 жыл бұрын
3 жыл бұрын
4 жыл бұрын
4 жыл бұрын
4 жыл бұрын
4 жыл бұрын
Пікірлер
@They.envyMina Күн бұрын
Omg. Thank you SO much!! Is it okay to say I love you for this?
@Leah4sciMCAT 11 сағат бұрын
hahaha so glad you found this helpful, and sure, we'll go with yes
@GaverMote Күн бұрын
iam from iraq this is in ❤University of Kufa. I searched very hard to find someone talking about this topic. Thank you very much. I feel that I understand the topic a little
@yousifaburoos6041 2 күн бұрын
thanks alot for this simple yet effective explanation. have a nice day ma'am, please wish me luck I have an exam after 2 days...😅
@Leah4sciMCAT Күн бұрын
You're very welcome and best wishes with your exam!
@NforAbanda-b4w 2 күн бұрын
Why is glucose called D or L glucose
@Leah4sciMCAT 11 сағат бұрын
The D and L have to do with stereochemistry of the molecule
@timecode37 2 күн бұрын
Could it be that the first skeletal formula for D-Glucose isn't quite right? My Fischer projection ends up with all the hydroxyl groups on the right side. If you compare it with the picture on wikipedia, the skeletal structures for D-Glucose don't match. When doing the projection starting from the skeletal structure from wikipedia, the fischer projection matches the one in the video. Can someone tell me what i'm doing wrong?
@Leah4sciMCAT 11 сағат бұрын
Yup, I've been teaching this for well over a decade and only JUST learned that I've know and taught this wrong all along!! I will be redoing this video 🤦🤦🤦
@james7951 3 күн бұрын
I think this is the most helpful aa memorization video I've ever watched - thank you so much!!! You are doing the lord's work!!!!
@Leah4sciMCAT Күн бұрын
You're very welcome, I'm so glad it was helpful!
@sureshrajan2667 3 күн бұрын
Thank you so much,this helped me get better marks in my biology exam
@Leah4sciMCAT Күн бұрын
Glad it helped!
@CluelessTeen 3 күн бұрын
Thank you so much for this, I'm currently a Nursing student because I'm not sure whether or not to enter med school. This question is the reason why
@Leah4sciMCAT 11 сағат бұрын
You're very welcome! I've worked with many premed students of every intelligence level. I have smart students who don't make it because they stop trying and 'less than smart' students who are so determined and refuse to give up, they wind up doing EVEN BETTER in med school because they know HOW to work hard and reach their goals. They make the best doctors If medicine is your dream, really consider if you're willing to do whatever it takes, then go for it
@AsfandYousafzai-s8h 4 күн бұрын
Ma'am how can I get your other videos
@AdamuAbdi-i5r 4 күн бұрын
So interesting lesson
@boop79 4 күн бұрын
You made this so much easier to understand than my Princeton books! Thank you so much! Please never stop making these videos they make such a difference for us premeds
@Leah4sciMCAT 11 сағат бұрын
So glad this video helped simplify what could be a complicated topic. Thanks for the kind words and I definitely plan to make many more videos soon, stay tuned
@andreasphilipe 5 күн бұрын
how do you know where to place the head? is it based off priority? because for example at 4:24 you placed the head on top where you can see bromine coming towards you to your left eye but at 7:23 you placed the head at the bottom. You said you can place the head anywhere but it changes the way you view the molocule. So question, how do you know where to place the head?
@SkittleYaps 5 күн бұрын
thanks a lot for the video but I have question; suppose zn loses 2 electron and becomes zn++ right but it would have been easier to remember like zn loses 2 electrons and becomes zn-- (losing relates to negative)
@Leah4sciMCAT 11 сағат бұрын
You have to look at the ionization energy, some atoms will easily lose one electron, some will lose move than 1 with relative ease while others will never let the second one go. Zn however will NOT gain electrons to form a negative
@AishatSaliu-s5s 6 күн бұрын
Please y is the carboxyl group written like that
@Leah4sciMCAT 11 сағат бұрын
At which point in the video?
@apodolaisaac744 10 күн бұрын
Such an impressive display. Thank you so much
@Leah4sciMCAT 8 күн бұрын
You're very welcome, happy to help!
@BenjaminMakurAnyaar 12 күн бұрын
Look how fast you're!!!😢
@Leah4sciMCAT 8 күн бұрын
I hope you found the video helpful!
@sgsdance4276 12 күн бұрын
Very helpful
@Leah4sciMCAT 8 күн бұрын
Yay, I'm so happy you found it useful!
@aayushixi 12 күн бұрын
well shit
@Leah4sciMCAT 8 күн бұрын
Good or bad?
@dematerializedtower 15 күн бұрын
thank you!
@Leah4sciMCAT 8 күн бұрын
you're very welcome!
@nishadijayasooriya9197 15 күн бұрын
I understood the left eye right eye method.but in 1:48 ,how we know the exact direction we should keep our eye? I drew the fischer projection from keeping eyes from up like 5:37 So the structure got different than what you got.in this sturcture, u kept the eye from downwards.how we know the exact position that should keep the eye.Is there any trick?
@Im_bjay 18 күн бұрын
Still confused on saying that the number 4 H being at the back?
@Leah4sciMCAT 11 сағат бұрын
I cover the basics of stereochemistry including what to do with #4 (H) in my chirality videos
@Leah4sciMCAT 11 сағат бұрын
Watch them here: leah4sci.com/chirality-stereochemistry-enantiomers-diastereomers-r-s-organic-chemistry-tutorial-series/
@治政-g4u 18 күн бұрын
Oil Rig
@Leah4sciMCAT 11 сағат бұрын
That's the other I heard but I like it less because it doesn't specify who loses what and who gains what
@netisasidhar8898 20 күн бұрын
Thank you so much for this video, ma'am. By what I understand this is a simplification of reality but very useful nonetheless.
@Leah4sciMCAT 19 күн бұрын
Glad it was helpful!
@austinjefferies9795 22 күн бұрын
I can recharge my cellphone?!?! This is my 3rd one this week!!!
@Leah4sciMCAT 20 күн бұрын
Charge away!!
@pattug333 23 күн бұрын
Thankyou mam, very useful video.
@Leah4sciMCAT 20 күн бұрын
You're so welcome, glad you found it helpful!
@ppnugget346 24 күн бұрын
I dont understand it at all imma fail so hard
@Leah4sciMCAT 20 күн бұрын
Oh no, I'm so sorry! When do you plan to take the MCAT?
@mimi1506. 15 күн бұрын
Same dude, same...
@ppnugget346 15 күн бұрын
@@Leah4sciMCAT MCAT??? im in the 11th grade I got 58% on the bio test btw (im in belgium so its a pass)
@sn-bo3un 3 күн бұрын
That’s crazy I’m learning this as a 24 year old in university organic chem 2
@obaidmohsin8188 25 күн бұрын
greatest of all time :)
@Leah4sciMCAT 20 күн бұрын
Aww thanks!
@neilshah_ 25 күн бұрын
Thank you so much. Really helped me!
@Leah4sciMCAT 20 күн бұрын
You're so very welcome!
@MarzellUupindi 26 күн бұрын
✅Clear explanations ✅ when you said Pause the video and practice with me__i knew 🎉 Watching from Liusaka, Zambia 🇿🇲
@Leah4sciMCAT 20 күн бұрын
Yay, so happy you found it helpful!
@vividxty 27 күн бұрын
Thank you so much this video has been the most useful! I memorized everything!
@Leah4sciMCAT 20 күн бұрын
So glad it was helpful!
@HassanKharouf-l8z 29 күн бұрын
thank you so much ❤❤
@Leah4sciMCAT 29 күн бұрын
You're very welcome 😊
@miladabdolahzadeh8473 Ай бұрын
I have a question, I'm studying veterinary biochemistry and my professor drew the haworth projection with the first carbon on on the left part of the pyran and the c6 down , is he wrong or this is another way of showing it?
@ReshmaNyshitha Ай бұрын
Best explanation ever
@Leah4sciMCAT Ай бұрын
Yay! So glad it resonated with you!
@napoleoncomplex2712 Ай бұрын
If you ran the galvanic cell to depletion, and then evaporated off the solution, would you be left with just zinc sulphate?
@Leah4sciMCAT 26 күн бұрын
In the anode, yes. But you might find a mixture of salts that also include a minority of sodium and nitrate ions from the salt bridge that migrated to help neutralize the cells.
@med_journey9379 Ай бұрын
Nice lecture 💯💯👍
@Leah4sciMCAT Ай бұрын
Glad you enjoyed it!
@Foxign_ Ай бұрын
10:40 is the CH20H equatorial? also in CH2OH is the H/OH there considered if asking how many H/OH are present
@Leah4sciMCAT 26 күн бұрын
Yes, the CH2OH is equatorial in that drawing. You would definitely count that as an alcohol group in the structure.
@The_Obliterator Ай бұрын
Hello ma’am a regular viewer here. Can you please tell me position of dash H like how you decide where to put it. Im really really confused please help me
@Leah4sciMCAT 26 күн бұрын
In this video, we were drawing Fischer projections when given the 3D sawhorse drawing. In other words, the dash H was given to us in the question and not something we were asked to draw. If you have a more specific question, feel free to reach out to me through my website at Leah4sci.com/contact and provide the video and time stamp that you're needing help with.
@isuriupadhya535 Ай бұрын
❤❤❤
@Leah4sciMCAT Ай бұрын
thank you!
@CyrusMuema-q8q Ай бұрын
Best explanation ever,,,thank you madam🙏
@Leah4sciMCAT Ай бұрын
You're so welcome, I'm glad this helped you!
@50Steaks68 Ай бұрын
still waiting for glycolysis part 3!!!
@Leah4sciMCAT 6 күн бұрын
Here you go leah4sci.com/glycolysis-steps-mcat-study-guide-cheat-sheet/
@dylanclark430 Ай бұрын
I WILL succeed. 🙌🙌🙌❣️ thank you for this video .
@Leah4sciMCAT Ай бұрын
You got this! I'm excited to be a part of your journey!
@shining_starq Ай бұрын
Thanks a lot. I had so much trouble solving MS chouhan book for organic chemistry just because I couldn't understand how to convert newmann to fischer, but now its all clear. tysm.
@Leah4sciMCAT Ай бұрын
You are most welcome, I'm so glad to help clear things up for you!
@nastiapavlenko1112 Ай бұрын
You saved me from failing chemistry multiple times, love you videos🙏🏻
@Leah4sciMCAT Ай бұрын
Happy to help!
@RaghavIyer-sr4fw Ай бұрын
Very Nice, it helped prep for my test!!
@Leah4sciMCAT Ай бұрын
Great to hear that, fingers crossed you reach your goal!
@DavidKawelama Ай бұрын
Well understood thanks
@Leah4sciMCAT Ай бұрын
You're so welcome
@michelleani_ Ай бұрын
here from anki deck
@Leah4sciMCAT Ай бұрын
Glad to have you here!