KEGS Chemistry

KEGS Chemistry

Chemistry videos produced at King Edward VI Grammar School, Chelmsford, Essex, UK

Advanced Level videos relate to UK A Level Chemistry Specifications:
OCR Chemistry A (AS/A2 - from 2008) (H434)
OCR Chemistry A (linear - from 2015) (H432)

General Level videos relate to UK GCSE Chemistry Specification:
AQA GCSE Chemistry 9-1 (8462)

Gas Collection Over Water

Gas Collection Over Water

Using Crucibles

Using Crucibles

June 2015 F325 Q7b

June 2015 F325 Q7b

Пікірлер

  • @slobek_ns
    @slobek_nsАй бұрын

    Until now, I have only heard about the hydrogen electrode, and now I see it in practice for the first time. Thank you for this brilliant video 😊👏🥇

  • @andalibiftakher3869
    @andalibiftakher38692 ай бұрын

    Awesome

  • @la-di-da
    @la-di-da3 ай бұрын

    very clear. Love this.

  • @Sjad-kareem
    @Sjad-kareem4 ай бұрын

    Thanks man ❤

  • @acid7347
    @acid73474 ай бұрын

    Why not have the intermediate as 2NO at 11:47 does that work for an answer?

  • @ahmadmustafafahd2079
    @ahmadmustafafahd20795 ай бұрын

    bro why did we connect SHE always to -ve and the other to positive?@KEGS Chemistry

  • @unwanabassey8739
    @unwanabassey87395 ай бұрын

    Thanks so much sir

  • @selvakumars6487
    @selvakumars64875 ай бұрын

    Can you please suggest where can I get these apparatus ?

  • @mohamedosama-fz1or
    @mohamedosama-fz1or6 ай бұрын

    From Egypt Thanks❤

  • @ahmedhamadi3438
    @ahmedhamadi34388 ай бұрын

    This was vary useful thanks for sharing

  • @lianelefebvre6637
    @lianelefebvre66379 ай бұрын

    What are your probes made of? I tried this with copper wire and it seemed to cause a chemical reaction!

  • @alexeipace2955
    @alexeipace29555 ай бұрын

    looks like carbon/graphite

  • @user-ee6rd6mk1w
    @user-ee6rd6mk1w9 ай бұрын

    Does anybody know when I can buy the glassware to make a SHE? I am a lab technician in a school.

  • @user-zg7ds7qn5v
    @user-zg7ds7qn5v9 ай бұрын

    رائع وواضح كأن يحتاج ترجمة حتى يسهل على الطلاب فهمه.

  • @mjmeternal2696
    @mjmeternal269610 ай бұрын

    Thank you. I learnt something especially changing the maximum from being to but choosing the minimum to be -20 and flipping the axis. Thank you. I subscribed.

  • @mw4749
    @mw474910 ай бұрын

    what is there in conical flask in 2nd case

  • @Shaileshexperiences1587
    @Shaileshexperiences158711 ай бұрын

    Good explanation

  • @Frederick-765
    @Frederick-765 Жыл бұрын

    What order of reaction is this sir?

  • @Gloxy_16
    @Gloxy_16Ай бұрын

    It's zeroth order as the concentration of iodine doesn't affect the rate of the reaction

  • @DANIANO26
    @DANIANO26 Жыл бұрын

    thank you for this helpful video

  • @wiflix
    @wiflix Жыл бұрын

    Wow, this makes perfect sense. Thank you for finally answering this (apparently) obscure question!

  • @Baschalrahahaibhai
    @Baschalrahahaibhai Жыл бұрын

    ❤thanks dude for this

  • @TeddyNassuna-yd7qp
    @TeddyNassuna-yd7qp Жыл бұрын

    This is so interesting 😮

  • @emilieeeevege0354
    @emilieeeevege0354 Жыл бұрын

    THANK YOU SO MUCH FOR HELPING ME THIS FOR AP CHEM OML

  • @sachinmhatre6540
    @sachinmhatre6540 Жыл бұрын

    Thanks a milliion

  • @fub1818
    @fub1818 Жыл бұрын

    thankyou so much this was very helpful xx

  • @yukinaminato
    @yukinaminato Жыл бұрын

    Thank you so much sir for this video. I've been struggling with mole ratios and this video helped me.

  • @OP-do7rt
    @OP-do7rt Жыл бұрын

    lovely bro

  • @OP-do7rt
    @OP-do7rt Жыл бұрын

    lovely ♥️

  • @avin_gaur
    @avin_gaur Жыл бұрын

    Great video!!

  • @eswing2153
    @eswing2153 Жыл бұрын

    Thanks. Tic marks on the secondary axis?

  • @avinaash2505
    @avinaash2505 Жыл бұрын

    Coggins

  • @Slick6464
    @Slick6464 Жыл бұрын

    Coggins

  • @elsayedabdelhalim6042
    @elsayedabdelhalim6042 Жыл бұрын

    Is the ink water soluble?

  • @mohammada4523
    @mohammada4523 Жыл бұрын

    Hey, is there anyway you could privide sources?

  • @GigaJinjo
    @GigaJinjo Жыл бұрын

    nice im going to prepare some now!

  • @hallucinatinghawk3917
    @hallucinatinghawk3917 Жыл бұрын

    This doesn’t make any sense how do you just guess it

  • @him762
    @him762 Жыл бұрын

    A truly gorgeous video of the utmost quality

  • @Nayek1658
    @Nayek1658 Жыл бұрын

    Nice one Pankil, ur commet got 2 likes already

  • @Anirossa
    @Anirossa Жыл бұрын

    Thanks a lot!

  • @anandsingh8987
    @anandsingh8987 Жыл бұрын

    What is the voltage requirement to kick in electrolysis?

  • @maybenotsure5380
    @maybenotsure53807 ай бұрын

    The lower the v the slower it works but it doesn't matter much

  • @salamisupplier
    @salamisupplier Жыл бұрын

    Legend lad

  • @chijiokevictoria1507
    @chijiokevictoria1507 Жыл бұрын

    I have a question. Please why is hydrogen gas needed to flow into the set up?

  • @Akshatupadhyay3800
    @Akshatupadhyay3800 Жыл бұрын

    Because his potential diff 0

  • @kathyk7484
    @kathyk7484 Жыл бұрын

    how exactly do you identify whether a step is slow or fast

  • @slayer1412
    @slayer1412 Жыл бұрын

    not sure if you still need to know, but it will tell you in the question

  • @alielhajj79
    @alielhajj79 Жыл бұрын

    dude i love how ur so happy with the graph. Great video !

  • @atharva365
    @atharva3652 жыл бұрын

    Amazing

  • @Raj_1104
    @Raj_11042 жыл бұрын

    Bro! You Are Awesome Nothing is Better Than Practical Knowledge👍🤩 I am Truly Grateful To You

  • @liladutta2323
    @liladutta23232 жыл бұрын

    Abbey awaj nikal

  • @zainabhussain3887
    @zainabhussain38872 жыл бұрын

    ❤️

  • @techboss1825
    @techboss18252 жыл бұрын

    But the starch is an indicator, you were supposed to add it to the iodine before titrating

  • @berniaguirrejones
    @berniaguirrejones2 жыл бұрын

    As he points out at minute 1:14, the starch is added close to the end-point to avoid inaccurate results because of strong bindings to the iodine

  • @ebereokoene3394
    @ebereokoene33942 жыл бұрын

    How to indicate the endpoint when the potassium iodide is in the burette during titration?

  • @KEGSChemistry
    @KEGSChemistry2 жыл бұрын

    It's never done this way as you want excess iodide in order to generate a quantity of iodine that is directly proportional to the number of moles of your analyte. If you look at this video it explains more: kzread.info/dash/bejne/Zo2Nz8yYf9e1hpc.html

  • @nasimsadra1595
    @nasimsadra15952 жыл бұрын

    Great tutorial! Thank you 🙏🏻

  • @folashademodupe3704
    @folashademodupe37042 жыл бұрын

    Is it possible to perform this experiment by filling burette with iodine and conical flask with sodium thiosulfate?

  • @KEGSChemistry
    @KEGSChemistry2 жыл бұрын

    I've never seen it done this way! It would make the colour change very hard to detect as iodine would bind to starch present and make it go black immediately after addition. It would then fade and come back when you added more. Thiosulfate in the burette is much better!