Relative Atomic & Molecular Mass | A-level Chemistry | OCR, AQA, Edexcel

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  • Опубліковано 30 січ 2025

КОМЕНТАРІ • 33

  • @aaronsingh8823
    @aaronsingh8823 5 років тому +43

    On the Question 4, you stated that the number on the periodic table is the relative isotopic mass. But your statement is not true since it is the atomic mass.

    • @harazashi
      @harazashi 5 років тому +11

      technically the atomic mass is the average of all the isotopes that exist of the element, as it takes into account the % abundance of all of them, so it isnt entirely wrong calling it "isotopic" mass

    • @zearow5458
      @zearow5458 5 років тому +3

      @@harazashi would you still get the mark if you called it relative atomic mass but mentioned about the average of the isotopes

    • @harazashi
      @harazashi 5 років тому +2

      @@zearow5458 I dont think so because relative isotopic mass and relative atomic mass have different definitions so they would probably not accept it

    • @zearow5458
      @zearow5458 5 років тому +3

      @@harazashi www.digipac.ca/chemical/molemass/massnum.htm
      I feel like it was either a mistake or not explained properly so I found this instead.

    • @sabaxx22
      @sabaxx22 4 роки тому +3

      Aaron Singh I thought the same thing, I feel like it should be relative atomic mass

  • @salmannadeem2827
    @salmannadeem2827 Рік тому +1

    Can't thank you enough for these videos.

  • @zubairmalik4362
    @zubairmalik4362 4 роки тому +15

    This will be good if you are in year 9

  • @zetasky
    @zetasky 4 роки тому +6

    This was really helpful, thanks!

  • @faizabatool5760
    @faizabatool5760 4 роки тому +3

    Fantastic work

  • @Amirdokht
    @Amirdokht 2 місяці тому

    Thank you, your videos are really good ✨💌

  • @prodbysoulg1627
    @prodbysoulg1627 5 років тому +11

    really needed this like your accent too

  • @learnwithhafsashahid
    @learnwithhafsashahid 4 роки тому +11

    Hi! I have watched your videos. These are amazing, but here I have a confusion that you in the video, you said that 35.49 amu is the relative atomic mass of chlorine 35, but I think that it is the average atomic mass of chlorine not the relative one.
    So kindly can u plz clear this confusion??

  • @hayyanalmemsani805
    @hayyanalmemsani805 Рік тому +1

    But why do we take the isotope mass relative to "1/12" of a carbon-12 atom? What's the use of working with relativity then if we're practically comparing an isotope mass to 1? (1/12 × 12 = 1) I mean why not just take the isotope mass as is

    • @lizziellama
      @lizziellama Рік тому

      I am so confused about this too. Have you figured it out yet? If yes, please help a fellow chemistry student out ahah :)🙏🙏

    • @Anonymous678-z5y
      @Anonymous678-z5y 10 місяців тому

      Try asking AI or chatgpt, that's what I do when I get t confused about things like these

  • @85yumii
    @85yumii 2 роки тому

    Thank you that was really helpful

  • @nawalkhawar7602
    @nawalkhawar7602 4 роки тому +3

    Thank you sooo much! This really helped me

  • @Sunshine-xo3np
    @Sunshine-xo3np 5 років тому +4

    Are the required practicals included ?

  • @daksheshsrivastava3493
    @daksheshsrivastava3493 4 роки тому +1

    Molar mass of carbon tetrachloride

  • @Mr.Jawad-USA
    @Mr.Jawad-USA 2 роки тому

    Channel is very helpful thank you so much for uploading video

  • @sofiarose_____
    @sofiarose_____ 3 місяці тому

    I’ve been trying to wipe that tiny pen off my screen like five times until realising it is part of the video and not dust 💀

  • @peterskinner6728
    @peterskinner6728 4 роки тому +8

    This is crazy we are doing this in GCSE's and this video say's it's for A levels why do things have to get more difficult?

    • @SinCosTanha
      @SinCosTanha 4 роки тому +10

      It's basic chemistry knowledge, everything you're learning in GCSE is in A-levels too. You just brush up on this when you decide to study Chem A-levels.

    • @hareemm.tumuscu2517
      @hareemm.tumuscu2517 4 роки тому +6

      It gets a LOT harder than this

  • @janeehimwenma5963
    @janeehimwenma5963 4 роки тому +1

    She’s great

  • @JK-vm7yo
    @JK-vm7yo 3 роки тому +4

    Wont be using your channel again because of question 4 answer :(

    • @nehna204
      @nehna204 2 роки тому +1

      why not im confused

    • @85yumii
      @85yumii 2 роки тому +4

      @@nehna204 she said that the periodic table shows the relative isotopic mass while it should be the relative atomic mass.

  • @nicohabib146
    @nicohabib146 2 роки тому

    I don’t understand anything. It’s too complicated