Blue Bottle Equilibrium

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  • Опубліковано 1 лис 2024

КОМЕНТАРІ • 67

  • @nicholassanders9023
    @nicholassanders9023 9 років тому +154

    The oxygen is dissolved in the solution; hence the methylene blue causes the solution to turn blue. As the reaction proceeds, the oxygen is consumed in the reaction as glucose is oxidised to form carbon dioxide and water and hence the solution goes colourless. As you reshape the flask, you dissolve more oxygen back into solution turning the solution blue again

    • @block1086
      @block1086 7 років тому +2

      Nicholas Sanders

    • @minecraft_0386
      @minecraft_0386 6 років тому +12

      The explanation was quite helpful to me. Thanks a lot

    • @couldntthinkofausername8411
      @couldntthinkofausername8411 5 років тому +13

      I’m doing a worksheet on this video and your answer just saved us 5 minutes

    • @ilenelaugen5061
      @ilenelaugen5061 5 років тому +4

      thank you for helping me with my science project

    • @rinckeric4741
      @rinckeric4741 3 роки тому +1

      so finally three is no oxygen in the enclosed flask,right?

  • @noeliaskz
    @noeliaskz 3 роки тому +3

    La profe nos mando a ver este video,esta buenísimo jajajs gracias me salvaron de hacer el experimento :D

  • @michaelsmaragdakis4272
    @michaelsmaragdakis4272 4 роки тому +13

    This is not an equilibrium as Glucose in not reformed. By shaking the bottle you just help dissolve more oxygen (one of the reactants) in water. Since gases have very low solubility in water, only a small amount of oxygen may be in the solution at any time, it is consumed fast due to the catalyst and the color dissapears. Shaking speeds up the entry of more oxygen to the water, as if left to disolve while in calm it would react as soon as it disolved. Nice experiment but no equilibrium here, if only production of Glucose was that easy.

  • @shahidmahmood7046
    @shahidmahmood7046 9 років тому +8

    good presentation....really

  • @aloelane4424
    @aloelane4424 6 років тому +4

    How much of the materials are required?

  • @jaynahata382
    @jaynahata382 4 роки тому +2

    From where we can buy these things

  • @sarakarn
    @sarakarn 10 років тому +6

    Catalytic oxidation oxidation of glucose??? Is it the reduction of methylene blue by glucose in strong alkaline condition? when the flask was shaken, the oxygen in such system can re-oxidise the colorless form of reduced methylene blue to blue color???

  • @mromeroh1
    @mromeroh1 4 роки тому +5

    HELP, question:
    I'm looking for a reaction where you start with color (any color is ok) and after a certain time, it becomes colorless. If possible I would like to do it with non-harmful chemicals, because it's going to be an experiment for primary school kids.
    -Start with a color (already set up in the container, if possible use non-harmful chemicals or natural products)
    -Add H2O and it becomes colorless
    -If possible, change the time it takes to become colorless based on the concentration of the initial chemicals/products
    -Use natural products or non-harmful chemicals, as it is an experiment for kids, primary school students.
    Thank you very much.

  • @Robotnik75XYZ
    @Robotnik75XYZ Рік тому

    What can I substitute glucose and potassium hydroxide with?

  • @AJobScroller
    @AJobScroller Рік тому

    What if we add phenol red along with methylene blue?

  • @hassanalkhalifah1565
    @hassanalkhalifah1565 5 років тому +1

    Does table sugar work too?

  • @shahinzerozero2873
    @shahinzerozero2873 7 років тому +3

    can we use any other thing for methalyne blue

  • @pabitragurung4422
    @pabitragurung4422 4 роки тому +1

    Can we use any Base beside koh

  • @terminsane
    @terminsane 4 роки тому +2

    If this is sealed in a jar, how many times can it turn blue and back?

    • @imvuglitter6370
      @imvuglitter6370 2 роки тому +1

      forever hence why it’s equilibrium

    • @kishorevenugopal6191
      @kishorevenugopal6191 Рік тому

      @@imvuglitter6370 But if Oxygen is transformed into CO2, how can it still have Oxygen to change colour?

  • @chemistrylecture6
    @chemistrylecture6 5 років тому +1

    Can we use caustic soda

  • @dineshpokkath5779
    @dineshpokkath5779 6 років тому +3

    It works

  • @keanguerra1146
    @keanguerra1146 8 років тому +4

    What kind of glucose are you using?

  • @arulmurugan4727
    @arulmurugan4727 5 років тому +2

    Can we use other indicators

    • @globgblobgabgalab
      @globgblobgabgalab 2 роки тому

      i dont think you can because the glucose is reducing methylene blue solution andyou wont get the same blue color as you get with methylene blue. i havent tried the experiment yet but this is just my thoughts

  • @linfan6596
    @linfan6596 3 роки тому +1

    Great job 👌👍👍

  • @ashishpandey5680
    @ashishpandey5680 Рік тому

    can I use NaOH in place of KOH???

  • @dida8252
    @dida8252 3 роки тому

    soo is this a chemical or physical change?

  • @rolex1608
    @rolex1608 Рік тому

    Danke

  • @marufahmad655
    @marufahmad655 5 років тому +2

    From Bangladesh.....

    • @juvnchy
      @juvnchy 4 роки тому

      Maruf Ahmad cool

  • @dayasharma8018
    @dayasharma8018 6 років тому +1

    It this a reversible reaction or not plzzz reply me

    • @s9scrxmsy424
      @s9scrxmsy424 5 років тому

      Yes

    • @themagiccorner7530
      @themagiccorner7530 4 роки тому

      No

    • @russellgrant4544
      @russellgrant4544 3 роки тому +1

      It is not technically reversible. Methylene blue is reduced by glucose, which makes it turn colorless (called methylene white). The colorless methylene white can be oxidized back into methylene blue by oxygen. So, the methylene blue methylene white transformation is reversible in a sense. I wouldn't call it technically a reversible reaction because they are actually the result of two separate essentially irreversible reactions. The reaction between methylene blue and glucose along with the reaction between methylene white and oxygen are not reversible in this situation.

  • @vinalangi2700
    @vinalangi2700 2 роки тому

    what happen it the flask was filled to the top with the solution

    • @donrowe101
      @donrowe101 Рік тому

      the driving reaction uses up oxygen (O2). when the O2 reactant is gone the reaction stops and no further color change will occur. with a fuller flask (less air, less oxygen) at the start the reaction will end sooner than when the flask contains more air, therefore more O2

  • @TechAger
    @TechAger 3 роки тому

    Thank you so much sir

  • @aparnasur844
    @aparnasur844 6 років тому +3

    Fantastic♥

  • @ammugiri5363
    @ammugiri5363 3 роки тому

    😯😯😯😯Super 👌👌👌👌

  • @yousmell3321
    @yousmell3321 5 років тому +3

    I don’t understand why this is equilibrium... 😓

    • @taod01
      @taod01 4 роки тому +1

      It’s in a closed system and so the backwards reaction is the same as the forwards reaction

  • @vinaynaral6872
    @vinaynaral6872 8 років тому +1

    how long does the reaction can proceed??

    • @nikolaus43211
      @nikolaus43211 4 роки тому +1

      @@vcuberx no, only as long as there is oxygen in the system.

    • @rudu3298
      @rudu3298 Рік тому

      @@nikolaus43211 is it turning blue because the oxygen in the water?

  • @quantumsteps
    @quantumsteps Рік тому

    Pyar ❤️from india

  • @Tamilselvi-cg7ik
    @Tamilselvi-cg7ik 5 років тому +3

    Please give chemical equation for this reaction

    • @noxusfumes3628
      @noxusfumes3628 5 років тому +4

      C6H12O6 + 6O2 ==> 6CO2 + 6H2O

    • @nikolaus43211
      @nikolaus43211 4 роки тому

      @@noxusfumes3628 wrong. the aldehyde gets oxidised to a carbon-acid.

    • @noxusfumes3628
      @noxusfumes3628 4 роки тому

      @@nikolaus43211 You can clearly hear him saying this himself, that glucose reacts with oxygen in air to produce CARBON DIOXIDE and not some carbon acid, at 0:28

    • @nikolaus43211
      @nikolaus43211 4 роки тому

      @@noxusfumes3628 and its wrong. or can you see bubbles rising from carbon dioxide like in soda?

    • @noxusfumes3628
      @noxusfumes3628 4 роки тому

      @@nikolaus43211 You do have a point. Now I tend to believe that the evolved CO2 remains dissolved in water as carbonic acid, H2CO3. What's your take on this?

  • @CleanyBeats
    @CleanyBeats 3 роки тому

    CoOl

  • @FrostyFlames24
    @FrostyFlames24 5 років тому

    🤘🏼🤘🏼🤘🏼🤘🏼🤘🏼🤘🏼🤘🏼🤘🏼🤘🏼🤘🏼🤘🏼

  • @Ciucciue-2z
    @Ciucciue-2z 8 місяців тому +1

    Guariscimi tutto anche l aids la lebbra i tumori la leucemia la sindrome psichiatrica e l aids oids e u mi chiamo Biagio di balsamo e famiglia

  • @akhitamanna9262
    @akhitamanna9262 5 років тому +5

    Oh my God how does he talk I get so irritated!!