Chemical Kinetics - Initial Rates Method

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  • Опубліковано 18 лис 2024

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  • @TheOrganicChemistryTutor
    @TheOrganicChemistryTutor  3 роки тому +61

    Chemical Kinetics - Free Formula Sheet: bit.ly/3zYmDjy
    Direct Link to The Full Video: bit.ly/3iho1Fa
    Full-Length Videos & Exams: www.patreon.com/MathScienceTutor/collections
    Chemistry PDF Worksheets: www.video-tutor.net/chemistry-basic-introduction.html

    • @sundaydiego5939
      @sundaydiego5939 2 роки тому

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  • @Randomkloud
    @Randomkloud 3 роки тому +133

    at 13:48 I appreciate you mentioning this again (that M is mol/L ie Molarity) because sometimes people forget and just get more and more lost as the lecture continues. it helps to reinforce the knowledge by repeating sometimes.

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    @georgesadler7830 Місяць тому +1

    Professor Organic Chemistry Tutor, a huge thank you for a basic understanding of Chemical Kinetics in AP/General Chemistry. The interpretation and explanation of the Rate Law/Rate Law Expressions/Problems is outstanding from initial to final step. This is an error free video/lecture on UA-cam TV with the Organic Chemistry Tutor.

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    @ObaaYaaPortia 9 місяців тому +1

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    @librarydweller8819 2 роки тому +5

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    @shahafyakov2860 2 роки тому +8

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  • @chishimbachisha3210
    @chishimbachisha3210 3 роки тому +5

    14:30, the answer supposed to be positive because [NO] is decreasing with time therefore we're supposed to multiply -8.2 x 10³ m/s with a negative sign (-), inclusion the final answer is 8.2 x 10³. Look it up in Zuhmdahl 9th Ed, page 555-556

  • @navni2952
    @navni2952 3 роки тому +306

    ladies and gentlemen, the reason i have an A in AP chem:

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    @chidieberemartins-igwe8580 10 місяців тому

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  • @blumino1006
    @blumino1006 Рік тому +1

    Answer for the question that popped up at last for 0.00000001s
    (a) Rate=K[A]²[B]¹[C]^0
    (b) K= 800 M^-2 h^-1
    (c) 38.4 M h^-1

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    @fatemehniroomand2305 4 місяці тому

    The video was helpful, thank you❤❤

  • @lemo4128
    @lemo4128 Рік тому

    amazing video,very claer about units

  • @dayannalarrea8737
    @dayannalarrea8737 3 роки тому +7

    at 14:27, why don't you take into account the 1/2 since we're looking for the rate? aren't you supposed to multiply that by the change in NO over time?

    • @갱갱항상
      @갱갱항상 3 роки тому

      i asked my chem prof this and she said that if it's just 1 reaction then you would use the idea that he did but he didnt clarify this lol. in real problems, you have to use the 1/coefficient rule

    • @som_6293
      @som_6293 2 роки тому

      It is cause we are finding rate of dissaperance of NO instead of rate of the reaction where we have to use 1/coefficient

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    @OluchiOdilinye-ti6hg Рік тому

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    @peMpa_2006 Місяць тому

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    @mudaumuneiwa9147 2 роки тому +1

    Thank you❤️😊

  • @Wowza2001
    @Wowza2001 3 роки тому +17

    14:19 Why didn't you multiply by 1/2 since the coefficient of NO is 2?

    • @usamakhan435
      @usamakhan435 3 роки тому

      Same question ... I was also surprised.. but I don't whether it is wright or wrong

    • @cassycervalin2885
      @cassycervalin2885 2 роки тому

      SAME

  • @alankuo2727
    @alankuo2727 2 роки тому

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    @LEGEND.vs4 Рік тому

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    @mikekamoza8076 2 роки тому

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    @noorhanalbayati8705 2 роки тому

    Can we please have more practice problems on this topic

  • @martijnvissers7602
    @martijnvissers7602 2 роки тому

    this is a great explanation!

  • @samuelkorger3567
    @samuelkorger3567 3 роки тому +7

    At 14:23, wouldn't you need to add the (1/2) in front of your calculation given that the coefficient of NO is 2?

    • @abemmohammed4564
      @abemmohammed4564 3 роки тому +3

      I came through the comment section for this but couldnt find the answer either

    • @gabrielragum
      @gabrielragum 3 роки тому +12

      The problem asks for the average rate of disappearance of NO in the first 20 seconds. The average rate of disappearence is defined as -Δ[R]/Δt, where Δ[R] is the change in concentration of the reactant.
      The reason you don't divide by the coefficient is because that would give you the average reaction rate (Rate = 1/2 (-Δ[NO]/Δt)), not the average rate of disappearence of NO.
      Therefore, for NO, -(0,586 - 0,750) M / 20 s is the final answer, which should be positive, not negative like in the video.
      Also I believe there is a mistake in the chemical equation (although it doesn't matter for this problem), the product of this reaction should be 2NO₂, not 2NO.

    • @dhivyamaalya
      @dhivyamaalya 2 роки тому

      @@gabrielragum Hey, this was very helpful. Thank you.

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