Dear Mr Allery, just wanted to say a big thank you for these revision videos. Within a couple of days, chemistry revision has gone from being something I dreaded to something that I find interesting and no longer a chore.
I am currently trying to get through an Open University chemistry module, and this has honestly made the whole aromatics block slot into place. Thank you!
finding these videos so useful, Thank you! Would you please make videos on the required practical's - typical exam questions/ variables ( control etc..) !
@hannahrafique9537 im not sure but i can tell you that cyclohexene is more reactive then benzene and is less stable..wdym by how come we use cyclohexene instead ..do you mean why is cyclohexene not more stable and preferred more then benzene when comparing enthalpies
we use cyclohexene because it has the same number of carbon atoms as benzene (6). whe use hexEne instead of hexAne because alkEnes can undergo electrophilic addition reactions (which is what hydrogenation is). what we see with cyclohexene is that the C=C allows it to react with hydrogen. but, benzene will more reluctantly or not react with hydrogen due to its delocalised system of electrons making it more stable
and this is used as evidence to show us that instead of benzene being comprised of double bonds, it’s actually made up of single and double bond intermediates which are of the same length as opposed to an alternating (conjugate) system of double/single bonds
Dear Mr Allery, just wanted to say a big thank you for these revision videos. Within a couple of days, chemistry revision has gone from being something I dreaded to something that I find interesting and no longer a chore.
A couple of days
@@edwardjarvis3442 A couple of days mate
@@edwardjarvis3442 what do u want him to say.... a couple of years🤣
who else cramming for paper 2 😳
we're all finished
Still cramming
your homie is here 🤚
Bro i just started …. #chatamicooked
except i just started SOBBING
[Timestamps]
BONDING (3.10.1)
2:20 = Structure of Benzene (delocalisation of p electrons)
4:20 = Representing Benzene (skeletal/ kekulé structure)
6:32 = Stability of Benzene
10:56 = Naming Aromatic Compounds
*****
ELECTROPHILIC SUBSTITUTION (3.10.2)
12:35 = Introduction to electrophilic substitution
15:19 = Friedel-Crafts Acylation
• 18:26 = Formation of the electrophile
• 19:33 = Electrophilic Substitution mechanism
23:05 = Nitration of Benzene
• 23:31 = Production of the electrophile
• 25:18 = Electrophilic Substitution
27:50 = Uses of nitrobenzene compounds
LEGEND
omg u are such a chad for making these videos
you ave made me enjoy aromatic chemistry. legend u dont understand how much u help students struggling. my teachers always recommend you to everyone
Thanks very much! 😊 I'm pleased you've managed to get a handle on aromatic chemistry. Big area of chemistry for just a benzene ring!
I am currently trying to get through an Open University chemistry module, and this has honestly made the whole aromatics block slot into place. Thank you!
Thank you soo much , I really struggle with organic chemistry but watching your videos have really helped.
You are so welcome!
Got exam in 4 hours and this helped a lot. Not a good sign but eh we move. Thanks a lot
You are saving my organic chem paper; thank you so much, sir.
finding these videos so useful, Thank you! Would you please make videos on the required practical's - typical exam questions/ variables ( control etc..) !
Thank you for this video, it makes everything so much clearer! :)
these videos are life saves especially with this whole pandemic thank you very much for sharing your knowledge to the world
thank you mr chemistry man
big thank youfor these videos superstar mr allery
I cant wait for a level chemistry to be over in a few days time😂
why is the methyl group not numbered in TNT?
thank you so much for you vedios
No problem 😊
how come we use cyclohexene instead of benzene when comparing enthalpies of hydrogenation? would they ask us why
@hannahrafique9537 im not sure but i can tell you that cyclohexene is more reactive then benzene and is less stable..wdym by how come we use cyclohexene instead ..do you mean why is cyclohexene not more stable and preferred more then benzene when comparing enthalpies
we use cyclohexene because it has the same number of carbon atoms as benzene (6). whe use hexEne instead of hexAne because alkEnes can undergo electrophilic addition reactions (which is what hydrogenation is). what we see with cyclohexene is that the C=C allows it to react with hydrogen. but, benzene will more reluctantly or not react with hydrogen due to its delocalised system of electrons making it more stable
and this is used as evidence to show us that instead of benzene being comprised of double bonds, it’s actually made up of single and double bond intermediates which are of the same length as opposed to an alternating (conjugate) system of double/single bonds
King
Cheers
🙏
Andrew grant approves
hi