Alkenes | A level

A level Chemistry
Alkenes
E/Z Isomerism
Electrophilic Addition
Organic Chemistry | Year 1

Пікірлер: 65

  • @user-eb6mm6ot6l
    @user-eb6mm6ot6l2 жыл бұрын

    this video worthy of thousands likes !! thank you soooooo much

  • @chemistrytutor

    @chemistrytutor

    2 жыл бұрын

    You are very welcome

  • @amirah3791
    @amirah3791 Жыл бұрын

    you are a lifesaver, this is the only video i found easy to follow 🙏 thank you!

  • @chemistrytutor

    @chemistrytutor

    Жыл бұрын

    That's lovely to hear, thanks for the feedback😀

  • @whoneedsapillowwhenjinshou2660
    @whoneedsapillowwhenjinshou26602 жыл бұрын

    Thank you so muchhhh, thank you for making this clear and easy for me to understand, I was confused in lesson, my teacher makes it seems complex

  • @kuznetsov5172
    @kuznetsov51723 жыл бұрын

    great video helped consolidate information. Thank you.

  • @chemistrytutor

    @chemistrytutor

    Жыл бұрын

    Really glad it's useful 😊

  • @melon0637
    @melon063720 күн бұрын

    KZread chemistry saving my ass 😭😭 my prof was literally a ghost teacher

  • @chemistrytutor

    @chemistrytutor

    20 күн бұрын

    Glad it helped. Hang in there! 😀

  • @enelleyefrat6483
    @enelleyefrat6483 Жыл бұрын

    Thank you for the beautiful video

  • @chemistrytutor

    @chemistrytutor

    Жыл бұрын

    You're welcome. Glad it was useful!

  • @modernfamile
    @modernfamile Жыл бұрын

    Hi thank you so much for this, just wanted to ask though is the biodegradability and recycling bit A2 cos on the spec for AQA it says it only on the a level only bit (I'm Year 1 AS by the way)

  • @chemistrytutor

    @chemistrytutor

    Жыл бұрын

    Thank you😀 Yes, you're absolutely correct that's A2. I mentioned it here to make it a clear contrast with polyesters and polyamides next year

  • @modernfamile

    @modernfamile

    Жыл бұрын

    @@chemistrytutor Thank you so much for the prompt response, I'll still definitely make a note of that anyway for next year. Thanks so much for these videos, they are so helpful.

  • @taniadreams8530
    @taniadreams85304 ай бұрын

    i cannot say thank you enough for covering everything in such detail! i'm doing ocr but there's lots of overlaps in content:)

  • @chemistrytutor

    @chemistrytutor

    4 ай бұрын

    Thank you for your kind feedback 😀

  • @soyadrink9831
    @soyadrink9831 Жыл бұрын

    Sir, what would be the monomer for the polymer /-CN-CN-CN (- single carbon bonds-forming the *Carbon chains* and the "/" single bond on the side of each carbon end that will connect to other carbons) Would it be: H2C=CHCN or NCCH=CHCN And could you explain why? Thanks!

  • @chemistrytutor

    @chemistrytutor

    Жыл бұрын

    I'm not totally sure I understand your formula/structure of the polymer. It can't come from an alkene monomer if there are 3 carbon atoms to the repeating unit skeleton. You could only get that if the repeating unit had a chain of 2 then something(s) branching out

  • @abds8842
    @abds88422 жыл бұрын

    thank you sir

  • @chemistrytutor

    @chemistrytutor

    Жыл бұрын

    You're welcome 😊 Hope chemistry is still going well!

  • @benbyers4701
    @benbyers4701 Жыл бұрын

    litterally saving my organic exam rn🙏🙏

  • @chemistrytutor

    @chemistrytutor

    Жыл бұрын

    Hope it went well!

  • @fidafida750
    @fidafida750 Жыл бұрын

    Thank you, sir. Your explanation is great , but I have a question Would you explain the mall lesso because I did not understand it well

  • @fidafida750

    @fidafida750

    Жыл бұрын

    mole

  • @chemistrytutor

    @chemistrytutor

    Жыл бұрын

    Thanks for the feedback 🙂 Here you go: kzread.info/dash/bejne/lHWVksiAfr3OmrA.html

  • @finnerz9200
    @finnerz9200Ай бұрын

    hi sir, quick question regarding geometric isomerism: say there is a methyl group attached to one carbon and on the same carbon another methyl, but instead of one of the hydrogens, there was for example a bromine or an iodine, do we consider the highest Ar out of all the atoms when we work our way out or just the atoms directly after as we work our way out? I hope i have made some sense with my question thanks

  • @chemistrytutor

    @chemistrytutor

    Ай бұрын

    Yes, your question makes sense. When the two atoms directly attached to the same carbon in the C=C have the same Ar value, we look at the other atoms attached to the first. So if one group was CH3 and the other CH2Br then the CH2Br has the higher priority

  • @finnerz9200

    @finnerz9200

    Ай бұрын

    @@chemistrytutor Ok brilliant, great video as usual😀

  • @fatimaalamien8786
    @fatimaalamien87862 жыл бұрын

    HELPP PLS , AT 23:09 you said that the carbon that had originally a share of 4 electrons now has 2 , isn’t it supposed to be 3? what am I missing here . pls help .

  • @chemistrytutor

    @chemistrytutor

    2 жыл бұрын

    That statement was about the electrons between the 2 carbon atoms. Originally 4e, now there are only 2 between them. You're correct about the number of electron pairs around that carvon being 3 pairs (3 of its own and 3 from the other atoms)

  • @nishatjeonkim2096
    @nishatjeonkim20969 сағат бұрын

    Sir when it comes to drawing alkenes, in exams can I draw them fully rather than simplifying them? I find it easier that way. eg drawing the displayed formula of 9:43 as CH3CH2CHCH3

  • @chemistrytutor

    @chemistrytutor

    2 сағат бұрын

    It depends on what you've been asked for. If you've been asked for skeletal, then that's the skill they're testing for, so you need to use that. Similarly, if they name displayed or structural. Other than that, the crucial thing is that your formula is clear and unambiguous... so you can't write C4H8, for instance, as more than one thing has that formula. So, normally you can do whichever you prefer

  • @akikabanu5885
    @akikabanu5885 Жыл бұрын

    gonna use this to ace my test fr

  • @chemistrytutor

    @chemistrytutor

    Жыл бұрын

    Good luck! 👍

  • @pratyasha279
    @pratyasha2794 ай бұрын

    can we follow ur channel for OCR A chem?

  • @chemistrytutor

    @chemistrytutor

    4 ай бұрын

    Yes, definitely 😀👍

  • @kikilebene3199
    @kikilebene3199 Жыл бұрын

    Can you make videos on oxidation of alkenes,hydroboration,oxymecuration demecuration

  • @chemistrytutor

    @chemistrytutor

    Жыл бұрын

    I'll add that to my list of suggestions 👍. I'm just about to finish off a halogens video now. I've got some exam question walkthroughs to make after. People have been requesting things like carbonyls and NMR recently

  • @soyadrink9831
    @soyadrink9831 Жыл бұрын

    Would water be in gas/steam when added to the ethylhydrogensulfate?

  • @chemistrytutor

    @chemistrytutor

    Жыл бұрын

    Water is typically a liquid form during this reaction. It's usually done at about 80-90 degrees so the ethanol product distills off but the water stays behind.

  • @ahmediftikhar425
    @ahmediftikhar425Ай бұрын

    Hi. Do you have any videos on hybridisation?

  • @chemistrytutor

    @chemistrytutor

    Ай бұрын

    Not really I'm afraid. In this video, I go into sigma and Pi Bonding a bit, but not sp3 or sp2 hybridisation kzread.info/dash/bejne/amV4qLyKhKeqYso.html

  • @shahzarbukhlaw5963
    @shahzarbukhlaw5963 Жыл бұрын

    27:00 - isn't it more likely for unstable molecules to form the major product, as they require more electron density in that case??? Since the more stable element is less likely to take in the Br ion, as it's more stable - due to more electron density. ???

  • @chemistrytutor

    @chemistrytutor

    Жыл бұрын

    Good question. Less stable is less stable because it has more energy. so more energy has to go into the reactant to change it into the less stable intermediate. Imagine the reaction profile with a really high activation energy. So a more stable intermediate has less energy, so less activation energy is needed to make it in the first place

  • @chemistrytutor

    @chemistrytutor

    Жыл бұрын

    So it forms more readily and therefore more often

  • @okepidannie5749
    @okepidannie57499 ай бұрын

    Thank you very much LoL🥰 2 months to my final exams

  • @chemistrytutor

    @chemistrytutor

    9 ай бұрын

    Best of luck with your revision! This is a catalogue of videos that might help... drive.google.com/file/d/1s3I5prjbJRR1U1lcKpXO9TQpQMaVoP66/view?usp=drivesdk

  • @romana6797
    @romana67974 ай бұрын

    Can this be watched for edexcel?

  • @chemistrytutor

    @chemistrytutor

    4 ай бұрын

    Yes definitely! 😀

  • @delicatewallflower
    @delicatewallflower5 ай бұрын

    Thank youuuu sirrrr ❤❤❤❤❤

  • @chemistrytutor

    @chemistrytutor

    5 ай бұрын

    Very welcome 😀

  • @zhar9177
    @zhar91774 ай бұрын

    Sir you is da Goat I would like to ask you for some advice I'll be appearing for CAIE MJ 2024 As exams and we have about three months left and still haven't finished the syllabus . Im really worried that I'll mess up my grades as myself I have a strong command on very little content.Any advice on how to proceed from here or how to go on to cover the topic whether its a schedule or a rough system and any tips would be greatly appreaciated. Once again Thank You

  • @chemistrytutor

    @chemistrytutor

    4 ай бұрын

    I think you need to be systematic when you approach your learning. Make sure you've got a checklist of what you need to know and actively do some ticking off or some kind of RAG rating. Then you know where to prioritise your efforts. The closer you get to the exam you'll want to switch up and start doing more past paper questions. Then when you mark them you can see where the gaps in your knowledge are and do something about it. You have to be honest with yourself and know that you're seeking out gaps (which is scary). But once you've found the gaps, and done something about it you'll feel good. And finally, try not to stress about time and what you don't yet know. Use it as a motivator to keep you going!

  • @zhar9177

    @zhar9177

    4 ай бұрын

    @@chemistrytutor Thank You soo much

  • @chemistrytutor

    @chemistrytutor

    4 ай бұрын

    @zhar9177 good luck 👍

  • @delicatewallflower
    @delicatewallflower5 ай бұрын

    Zem zide 😮😮😮 14:36

  • @chemistrytutor

    @chemistrytutor

    5 ай бұрын

    It's silly, but it helps us remember 😀👌

  • @miyumithisewnithennakoon8141
    @miyumithisewnithennakoon8141 Жыл бұрын

    Chemistry is POSSIBLE! Don't believe me? Watch this!

  • @chemistrytutor

    @chemistrytutor

    Жыл бұрын

    Do I need to rename this video title to make it just be your comment? 😀

  • @cverheijen4949
    @cverheijen4949 Жыл бұрын

    i am so thankful for this video! you saved me!!🫶

  • @chemistrytutor

    @chemistrytutor

    Жыл бұрын

    Excellent! Hang in there 😀 I've got lots of other videos that will be useful 😁

  • @cverheijen4949

    @cverheijen4949

    Жыл бұрын

    @@chemistrytutor i will! i am german so english is not even my first language but i understood everything.

  • @chemistrytutor

    @chemistrytutor

    Жыл бұрын

    @@cverheijen4949 fantastic! I love German but couldn't put 2 chemistry sentences together in German, so well done!