AQA 3.14, 3.15 & 3.16 Organic Synthesis, NMR and Chromatography REVISION

[@mominoppo1186]

this man is irreplaceable 👑

[@amypaul-cu2yg]

completely agree, thank you so much Chris!

[@adailyfact]

What did you get in your A Level grades.

[@lumosv1014]

Truly the GOAT, thank you so much, single-handedly carried Organic Chemistry.

[@AlleryChemistry]

You're welcome 👍

[@nixs6061]

Hi Mr Harris, I have missed a lot of chemistry lessons due to being ill often. Your videos have been invaluable for my revision and catching up on stuff I missed out in school. thank you for taking up the time to make these videos, you have helped countless students.

[@AlleryChemistry]

Thanks very much. Hope you get better soon

[@chrisjbaines22]

Just finished all these videos supplementing my revision, had to leave a comment to say I don't know where I'd be without these. Definitely wouldn't understand as much! Thanks a bunch Chris!

[@AlleryChemistry]

You're very welcome 😀 Hope you're exam goes well tomorrow.

[@racheldoran9758]

Timestamps for revision: 2:00 ORGANIC SYNTHESIS [3.14] • 3:24 = Aliphatic reaction pathways • 10:02 = Aromatic reaction pathways • 11:44 = efficiency, cost, safety etc. **** 14:31 NMR Spectroscopy [3.15] • 15:04 = Introduction • 22:36 = Shielding • 28:15 = Identifying Carbon/Hydrogen environments • 32:20 = The TMS Standard + Chemical Shift • 36:18 = Interpreting C-13 Spectra • 42:09 = C-13 Shift Value Data Tables • 44:00 = Determining structure from C-13 Spectra (example) • 46:27 = Proton NMR Intro • 50:06 = Proton NMR Shift Value Data Tables • 51:51 = Splitting patterns • 56:36 = Integration Traces • 58:47 = Solvents used in NMR • 1:00:39 = Determining structure from Proton Spectra (example) **** 1:05:42 CHROMATOGRAPHY [3.16] • 1:06:12 = Thin Layer Chromatography (TLC) • 1:10:41 = Calculating Rf Values • 1:13:00 = Column Chromatography (CC) • 1:15:16 = Gas Chromatography (GC) • 1:20:03 = Using Mass Spec with GC (GCMS)

[@junaidlatif666]

Thanks!

[@seinebabbas3586]

Organic synthesis: 2:30 NMR: 14:36 Chromatography: 1:06:02

[@Adaomajoanis]

youre a gem

[@phiebondie]

Good luck for tomorrow everyone!!!!

[@sussybaka8605]

cooooked

[@harisjutt69]

Mr Harris, you are a great man. God bless. Learnt all of a level chemistry in 2 days, just at time for the exam.

[@AlleryChemistry]

Hope it went well

[@harisjutt69]

@@AlleryChemistry just came back, it went really well. Thanks once again🫡.

[@ima-2425]

@@harisjutt69 was wondering if u have any tips on organic chem as there’s so many types of questions hope this doesn’t bother you

[@Mimi_xoxx]

@@ima-2425 tbh just keep writing them out till they stick in

[@EmanFatima-ic2be]

I have been watching your videos since the start of my a levels and you have been a true lifesaver!!!! you have helped me so much to improve my grade in chemistry I went for C grade to an A*. Thank you soooo much! I really appreciate all your hard work!🙏

[@AlleryChemistry]

You are very welcome!

[@Z.T101]

I wanted to leave a comment to really thank you. I am a mature student who resat GCSES and the jump to a level felt insane! I also have dyslexia which makes learning so much harder. Your videos are amazing, you explain clearly and break the videos down into smaller section. I am a huge fan of you breaking content down using different colours and examples. Thank you, safe to say we all appreciate you and these videos!

[@AlleryChemistry]

That's very kind of you, and I'm pleased the videos have helped you. Hope your A Level studies go well. 👍

[@Karessas_waltz]

You are a GODSEND!!! thank you so much for making these videos, they make all these big topics a lot less daunting! :)

[@AlleryChemistry]

Glad you like them!

[@ShrumdayNightFootball]

you are actually the goat. helped so many people

[@Masowe.]

hello sir, this is the last video for me to watch on a level chem. I am thankful i met you and all your videos. Stay blessed

[@danpickett2939]

at 49:23 the compound is ethanoic acid not ethanol

[@kinanshorthacks1409]

48:40 should the molecule be ethanoic acid instead of ethanol?

[@haris2149]

patterned me night before love broski

[@aaminahthekilla]

2:46 -> hey allery chemistry, this reminded me: you should definately listen to the song ‘superhuman’ by nct127 - its quite lifechanging. let me know what you think :)

[@AlleryChemistry]

Had a listen, seems quite an energetic song. Don't think I could pull off their dance moves though! 😂

[@minatozakiz]

omg i thought the same thing 😭

[@omerk6036]

Great video 👌

[@AlleryChemistry]

Thanks 👍

[@munaaliii]

Hello sir, hope you’re well. Can u make video going through identifying stucture of compounds using these techniques, nmr mainly

[@sanayeon6665]

2 hours before paper 2, im so nervousssss!!!!

[@omerk6036]

Yeah we would really appreciate it if you can make a playlist for the new updated specification for AS Edexcel chemistry. That would be very helpful.

[@AlleryChemistry]

Here it is kzbin.info/aero/PLX4e2DxFRGQKhdcrhRwsd6fLjTyDjicRr

[@omerk6036]

These videos are from the 2015 spec. The upcoming exams will follow the 2018 spec which is quite different. Can you please make a playlist for those

[@AlleryChemistry]

The Edexcel specification hasn't changed since 2015. I can only assume you are studying the international Edexcel course, I don't have any exam board specific ones for the internationals I'm afraid.

[@jahnavi1298]

absolute legend

[@LionBerryMango]

Why can’t it be propyl methanoate on the nmr example ? :(

[@dionmackenzie4471]

saved my life, paper 3 today

[@AlleryChemistry]

Hope it all goes well this morning!

[@yasinmubarak5671]

Hi Chris have you recently changed the way you've ordered videos on your playlist? Before it was clear which video pertained to which exam board, Is there a way to know which videos are relevant (specifically for OCR A)?

[@AlleryChemistry]

Hi. Yes I have moved all the exam board specific content (black backgrounds) on the front page. All the standard whiteboard tutorials are re categorised into new generic topics. They are all still there, just tidied up the channel a bit.

[@yasinmubarak5671]

@@AlleryChemistry Ah right, so it wouldn't do me harm if I just went through the playlists- not worrying about having to be exam board specific?

[@bobbyodu]

@@AlleryChemistry I found it way more useful when the ocr a videos where grouped by topic, it's difficult to navigate now

[@AlleryChemistry]

Yes, the White board ones are generic and were never exam board specific. The Black background videos are exam board specific so best watch them if you want an overview for your exam board. If you want to know about, say, titrations then just watch the whiteboard tutorials for specific info on that.

[@AlleryChemistry]

Hi. They are still grouped by exam board I've just used the black background videos to do this as they are tailored to specific boards. The whiteboard tutorial videos were never exam board specific, they go through generic chemistry content. Hope this explains it for you.

[@AliKhan-xi9eq]

Hi sir. Can you please make a playlist of the new AS Edexcel chemistry specification please as there's a new updated specification.

[@AlleryChemistry]

Here it is kzbin.info/aero/PLX4e2DxFRGQKhdcrhRwsd6fLjTyDjicRr

[@AliKhan-xi9eq]

Sir, these are for the old specification. There is another latest specification from which the exams will be. These vids are for the 2015 spec. The first exam from the latest spec was on Jan 2019

[@jasonsmart462]

Yea the new spec is different.

[@AlleryChemistry]

The Edexcel specification hasn't changed since 2015. I can only assume you are studying the international Edexcel course, I don't have any exam board specific ones for the internationals I'm afraid.

[@AliKhan-xi9eq]

Yes I'm studying the international Edexcel course in Qatar. Will those videos still be helpful for it?

[@Masculinity-]

hello sir, the example with C4H8O2 i dont understand when u said peak x for example has a value of x(a number), where do we get the value from? what does that value mean?

[@AM-hn7gj]

They tell u in the exam

[@relionabaq-harkenburg6306]

at 58:31, you haven’t rounded 1:1.5:1.5 to 2:3:3, you’ve doubled them

[@AM-hn7gj]

Yeh, he did that to get the simplest whole number ratio

[@user-su6js9po4l]

the goat/king/god

[@honeyhoney6920]

Lifesaver- thanks so much sir!!

[@AlleryChemistry]

You're welcome!

[@akihayakawa788]

king

[@ktm11545]

I'm cooked 😭

[@nosir1479]

4:49 unsubscribed

[@AlleryChemistry]

Don't go, it's not that bad is it? 😊

[@ShrumdayNightFootball]

@@AlleryChemistry goat

[@aasoow-x4y]

😭