Just wanted to say how useful these videos are, the explanations are clear, and they're giving me more confidence for my exam later today. Thanks so much :)
I've been struggling with organic chemistry since we started it a couple of months ago, and watching 3 of your videos have completely changed that so far! Thank you so much!!
I am currently in year 12 and I have watched all of your organic chem videos for the content I hav e covered so far and they have helped me so much! In my end of topic test I got all of the organic section correct thanks to you.
Just stumbled upon your videos as I was revising for my mocks next week and they are amazing! I've learnt more in an hour than I have in a week of chemistry lessons in school! Thanks soo much - I'll definitely be watching all of your videos! I also really like your accent haha ☺️
Did he say what I think he said at around 2:05? Haha completely unexpected had to rewind a few times and I'm still not sure, but I'll definitely remember elimination for the exam!
Just wanted to say a huge thanks for these videos, really well explained!! I was getting so confused with all of the mechanisms. Hopefully you'll do A2 videos aswell? ..
Sir i got completely lost at 11:32, can you explain why but-1-ene has that different display formula, moreover, what do you mean by ez isomerism? thanks a lot!
Rangahatimuhmon Hi! The difference between the 2 forms of butene is the position of the C=C. In but-1-ene, the double bond starts on the first carbon whereas but-2-ene, the double bond starts on the second carbon. Because of the restricted rotation around the double bond, having different groups attached to the carbons where the double bond is found means that E-Z isomerism can occur. If that isn't making sense, I would firstly recommend looking up some of the nomenclature stuff (th-cam.com/video/6mEO-3ogOA0/w-d-xo.html) to get your head around naming alkenes and then look at the E-Z isomerism. Let me know if I can help with anything else.
E Rintoul Hey sir, thank you for taking your time to reply. I have already seen the video you've made on naming organic molecules. i realized you haven't made a video on alkenes and polymers so that's probably the reason why I'm struggling with the concept of e-z isomerism. I guess I'll have to check what the cgp book says (this will be my first time using the book as you've made videos for all the other topics) Again, thank you so much for your videos. God Bless.
Hi, great videos, but would you need to show the partial charges of bonds when drawing the mechanism, i.e drawing the NaOH bond but with a delta negative over the OH and delta positive over the Na ? ?
thanx so much for all the vids! could you please make videos for kinetics and the maxwell boltzman distribuion, equilibria, group 7/group 2 metals and alcohols, thanx alot!
+Bridie Compton theyre only ever gonna give you a question on elimination using OH- really. And yes they are nucleophiles but you wouldnt describe them as such in the context of elimination
Hi I was wondering 2 things for Unit 2 Exam: 1. Do you need to draw out the product as well in mechanism questions? 2. How much do you have to know about the ideas between the haloalkane bonds? For example, the bond enthalpy is a more important factor then the dipole of the haloalkane bond in reactions. Does this go for all the other organic compunds aswell???
Very helpful video as always! However I was wondering what would happen if you were given a haloalkane with two or more halogens, for example 1,1dibromopropane? Would I ever be given a question like this in the exam? Thanks!
You'd never ever be asked that questions UNLESS they made it clear that you were starting with a dihaloalkane and then ending at a particular point. In that case, it's just an application of your knowledge. To satisfy your curiosity, I believe that a dihaloalkane would be eliminated to a haloalkene (which actually is called an alkenyl halide...) but could then be eliminated further to yield an alkyne (a hydrocarbon with a triple bond betweent adjacent carbons).
+E Rintoul towards the end, you asked us to name 3 products that are formed, you named But-2-ene and But-1-ene , BOTH of which i got correct. thank you. But i failed to understand the what the 3rd product was. Could you please explain?
+Rabiaa Asif the e/z isomer that occurs in but-2-ene is the 3rd product, you can form the e and the z isomer, and also but-1-ene, 3 products are therefore formed overall!
To be honest, I don't think I've ever seen marks on a markscheme for the partial charges. I recommend that people put them so that they are aware where the attack is taking place more than anything. But you are correct, elimination needs no partial charges - remember that the OH- is acting as a base rather than a nucleophile.
+Anisa Nuur Not at this point. My school does AQA so it makes sense for me to do that, plus I understand what's going on! You will probably find A LOT of crossover though with the 2 specifications. The best thing to do would be to check and see if they are similar!
8 years later. And I love you.
Just wanted to say how useful these videos are, the explanations are clear, and they're giving me more confidence for my exam later today. Thanks so much :)
Francesca Plant That's great to hear :)
I've been struggling with organic chemistry since we started it a couple of months ago, and watching 3 of your videos have completely changed that so far! Thank you so much!!
You are literally my Chemistry AS God! Thank you so much
Hannah Cleary-Hughes Thanks for the kind words, Hannah :)
bro I had no idea about anything this whole year. you're a lifesaver godsend amazing person
eliot you are a national treasure
2:00 why f*ing use ..... 🤣😂
Huge appreciation for you taking time out of your day to help, thank you!
2023 and you are still a gem :)
Literally taught me two weeks worth of a lesson in minutes so clearly too may God bless you 🎉 thank you
I am currently in year 12 and I have watched all of your organic chem videos for the content I hav e covered so far and they have helped me so much! In my end of topic test I got all of the organic section correct thanks to you.
Just stumbled upon your videos as I was revising for my mocks next week and they are amazing! I've learnt more in an hour than I have in a week of chemistry lessons in school! Thanks soo much - I'll definitely be watching all of your videos! I also really like your accent haha ☺️
Still watching your videos to this day lol. Great work, iconic
thank you so much, you explained it perfectly i understand it now, my teacher couldn't explain it well
u still around ?
Thank you for all of these videos!!!!
Thank you so much for your videos Sir!!
Did he say what I think he said at around 2:05? Haha completely unexpected had to rewind a few times and I'm still not sure, but I'll definitely remember elimination for the exam!
Dimitri Medjev No haha! I said "if I can use..."!!!
I don't get it?
he though he said FUCK
He said why if I can use hydroxide... not why fuckin use hydroxide ions..
For everyone that dont get it it's 2:03
These videos are really good!!!
"Why fucking use hydroxide ions.." xD
Thanks!
I think it says "why if I can..."
2:03
that was so unexpected it hit me like a freight train
to everyone writing this exam today, lets kick ass mates
6 years ago how u doin now mate?
This is the one mechanism that i struggle to remember, awesome video!
***** Think of it as a waterfall... If that makes sense?! Glad to have helped, anyway!
Yeah or a lightening bolt! Thank you!
This guy is the goat
Just wanted to say a huge thanks for these videos, really well explained!! I was getting so confused with all of the mechanisms.
Hopefully you'll do A2 videos aswell? ..
Thanks, Laura. I've got a couple of A2 videos up (Amines and Aldehydes & Ketones), both of which contain some of the A2 reaction mechanisms!
E-Rintoul you are the man, and i love you bro
Thank you so much for this video. :)
***** No problem!
Thank you so much!!! The isomer part just threw me off, I just could not get my head around it, thankyou so much!!
Manvir J Well I hope it makes some sense now!
Taking exams in 2017 and this is still very useful thanks
2017>>> hhaaaahaa duhh 2021 up
haha still helpful for 2023 exams
Your videos are awesome 👌 good job
If I end up getting an A after all this. I will credit you for the rest of my life on any videos I post.
you are literally the best
Sir i got completely lost at 11:32, can you explain why but-1-ene has that different display formula, moreover, what do you mean by ez isomerism? thanks a lot!
Rangahatimuhmon Hi!
The difference between the 2 forms of butene is the position of the C=C. In but-1-ene, the double bond starts on the first carbon whereas but-2-ene, the double bond starts on the second carbon.
Because of the restricted rotation around the double bond, having different groups attached to the carbons where the double bond is found means that E-Z isomerism can occur.
If that isn't making sense, I would firstly recommend looking up some of the nomenclature stuff (th-cam.com/video/6mEO-3ogOA0/w-d-xo.html) to get your head around naming alkenes and then look at the E-Z isomerism.
Let me know if I can help with anything else.
E Rintoul Hey sir, thank you for taking your time to reply.
I have already seen the video you've made on naming organic molecules. i realized you haven't made a video on alkenes and polymers so that's probably the reason why I'm struggling with the concept of e-z isomerism.
I guess I'll have to check what the cgp book says (this will be my first time using the book as you've made videos for all the other topics)
Again, thank you so much for your videos. God Bless.
Love these vids sir! Keep em goin! :D
Thanks!
Thankyou so much for this, really informative and clear.
could the halogen be anywhere on that carbon 5:50 thanks ?
Thanks
5:44 the hp scar 🤣
thank you so much for your videos i love your page!!!
Hi, great videos, but would you need to show the partial charges of bonds when drawing the mechanism, i.e drawing the NaOH bond but with a delta negative over the OH and delta positive over the Na ? ?
targett3am You never include the sodium ion in the mechanism!! Only use the OH-!
Alright cheers, got the exam on Tuesday and your videos have really helped, much more than my teacher has!
Thanks for the video sir. Hope this helps for tomorrow.
Thank you so much honestly. Bless you 🤣
may God bless you sir! Thank you...
Thank you so much
Thanks for your help
Thx for ur videos really helpful
Don't u hve to add partial charges?
Is there no isomers for But-1-ene because there are no methyl groups next to the C=C bond?
Boro Jen xX There isn't an EZ isomer, no! And your reasoning is correct.
thanx so much for all the vids! could you please make videos for kinetics and the maxwell boltzman distribuion, equilibria, group 7/group 2 metals and alcohols, thanx alot!
THANK YOU 🙏🏻
Insane bro
at 10:00 what if you wrote hexene instead of hex-1ene in the exam
Does Elimination only occur with the OH- ion or are there other nucleophiles this can occur with?
Also are they nucleophiles or not?
+Bridie Compton theyre only ever gonna give you a question on elimination using OH- really. And yes they are nucleophiles but you wouldnt describe them as such in the context of elimination
OH- can be a nucleophile, as in nucleophilic substitution. But it can also be a base, as in elimination.
would smash
Hi I was wondering 2 things for Unit 2 Exam:
1. Do you need to draw out the product as well in mechanism questions?
2. How much do you have to know about the ideas between the haloalkane bonds? For example, the bond enthalpy is a more important factor then the dipole of the haloalkane bond in reactions. Does this go for all the other organic compunds aswell???
"Language Timothy"
Very helpful video as always! However I was wondering what would happen if you were given a haloalkane with two or more halogens, for example 1,1dibromopropane? Would I ever be given a question like this in the exam? Thanks!
You'd never ever be asked that questions UNLESS they made it clear that you were starting with a dihaloalkane and then ending at a particular point. In that case, it's just an application of your knowledge.
To satisfy your curiosity, I believe that a dihaloalkane would be eliminated to a haloalkene (which actually is called an alkenyl halide...) but could then be eliminated further to yield an alkyne (a hydrocarbon with a triple bond betweent adjacent carbons).
That has successfully answered my question, thank you very much!
thank u so much
Thank you
Love u the most
thanks, im unsure when it is either nucleophilic substitution or an elimination reaction? Is there a clue in the question usually? thanks
If the question says an alkene is formed or that the haloalkane is in ethanol, the mechanism is elimination
Josh Teale Hana nailed the answer!
Hana Husain Good job!
thanks for the video
Thank you for this. :)
a month to go, and really loving these videos:) especially the 'you might be thinking, why fucking use this one..?' bit:) yep you read my thoughts:D
Quick question, where does the NaOH come from in the first example, if the base is only OH-?
Abid Ali You can't just add hydroxide ions, you need to add something that contains hydroxide ions i.e. NaOH. That help?
Yep thanks! So its a spectator ion?
Abid Ali The sodium is, yeah!
This was amazeballs love your shit man
Thank you good sir, but i was wondering what were the 3 products formed
Mohamed Views At which point of the video...?
+E Rintoul towards the end, you asked us to name 3 products that are formed, you named But-2-ene and But-1-ene , BOTH of which i got correct. thank you. But i failed to understand the what the 3rd product was. Could you please explain?
+Rabiaa Asif the e/z isomer that occurs in but-2-ene is the 3rd product, you can form the e and the z isomer, and also but-1-ene, 3 products are therefore formed overall!
is the last example on the ocr spec
In nucleophilic substitution you're meant to include partial charges. That's not the case with this is it?
To be honest, I don't think I've ever seen marks on a markscheme for the partial charges. I recommend that people put them so that they are aware where the attack is taking place more than anything.
But you are correct, elimination needs no partial charges - remember that the OH- is acting as a base rather than a nucleophile.
Why does dissolving hydroxides in ethanol make alkenes but dissolving hydroxides in water make alcohols?
do you do edexcel as and a2?
+Anisa Nuur Not at this point. My school does AQA so it makes sense for me to do that, plus I understand what's going on! You will probably find A LOT of crossover though with the 2 specifications. The best thing to do would be to check and see if they are similar!
Could you do edexcel?
Why doesnt the hex-2-ene form 3 products?
What happens if you have more than one Br?
Wasn't expecting the swear word 😂😂😂
How about with 2bromobutane
Then 2,2bromo butane
What about nucleophile addition
+Aqib Ahmed I think it's in the aldehydes video. Check it out here: th-cam.com/video/SfNihK9QbpU/w-d-xo.html
u say f word make me cry :(
he didn't say fuck, he said if i can use