Monday, July 10, 2017

1.3: Understand How the Results of Experiments Involving the Dilution of Coloured Solutions and Diffusion of Gases can be Explained



DILUTION OF COLOURED SOLUTIONS

Diagram Showing a Crystal of Potassium Manganate (VII) Dissolving in Water
METHOD:

  • Fill beaker with water
  • Add a Crystal of Potassium Manganate (VII) and record observations

RESULTS:

  • When Potassium Manganate (VII) Crystals are Dissolved in Water, a Purple Solution Forms
  • This occurs as both Water and Potassium Manganate (VII) Particles are moving Freely and sliding over each other, allowing them to mix to form a solution with a weaker colour than the original Crystal (original dye)
  • As Potassium Manganate (VII) particles are less concentrated, the final colour will be weaker





DIFFUSION OF GASES

Diagram showing the Diffusion of Bromine Gas with Air
METHOD:

  • Place a jar of air on top of a jar of Bromine
  • Allow time for diffusion to take place and record observations

RESULTS:

  • Overtime, Bromine Gas will diffuse upwards into the jar of air
  • This occurs as large gaps between Air and Bromine particles allows them to move randomly and collide with each other, mixing together to form a gas with lighter shade of brown
  • As Bromine particles are less concentrated, the final colour will be weaker

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14 comments:

  1. UnknownNovember 4, 2018 at 4:49 PM

    how does this help me understand

    ReplyDelete
  2. AnonymousNovember 7, 2018 at 5:39 AM

    this helped me so much , thank you x

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  3. UnknownNovember 11, 2018 at 7:29 AM

    this is amazing THANK YOU xx

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  4. LysanderJanuary 10, 2019 at 11:17 AM

    Is there any easier way of writing this down. For something like a flashcard

    ReplyDelete
    Replies
    1. UnknownFebruary 16, 2022 at 3:39 AM

      question on flash card: explain the method and results of the 'dilution of coloured solutions'.

      answer on back of flash card: method:

      - fill beaker with water

      - add a crystal of Potassium manganate (VII) and record observations.

      results: - when the P.M (VII) crystals are dissolved in water, a purple solution forms.

      - occurs as both water and P.M (VII) particles moving freely and sliding over each other allowing to mix and form water colour solution.

      - as P.M (VII) particles are less concentrated, final colour will be weaker.

      Delete
  5. UnknownJune 8, 2019 at 9:09 PM

    yeah

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