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Summary

GRATIS: opsomming + samenvatting scheidingstechnieken chemie (3de jaar)
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  • Course
  • Chemie
  • Institution
  • 2e Graad

Dit is een kort overzicht van de scheidingstechnieken in de chemie die ik moest kennen in het 3de jaar. Het document is gratis aangezien het maar 1 pagina is!

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Document information

  • July 10, 2023
  • 1
  • 2022/2023
  • Summary

Subjects

  • scheidingstechnieken
  • sorteren
  • zeven
  • filtreren
  • decanteren
  • centrifugeren
  • indampen
  • destilleren
  • extraheren

Written for

  • Secondary school
  • 2e graad
  • Chemie
  • 3
All documents for this subject (67)

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sam2008

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Content preview

Thema 3: Hoe kunnen we een mengsel van stoffen
scheiden?


Scheidingstechnieken:
 Sorteren = stoffen met gelijkaardige eigenschappen onderverdelen;
 Zeven = heterogene mengsels scheiden, steunt op verschil in deeltjesgrootte;
 Filtreren = heterogene mengsels scheiden, maar dan met kleiner verschil in
deeltjesgrootte;
 Decanteren = afgieten van bovenste laag, steunt op verschillende
massadichtheid
 Centrifugeren = met behulp van machine het effect van zwaartekracht
versterken, steunt op verschil in massadichtheid
 Indampen = homogene mengsels scheiden door te opwarmen, steunt op verschil
in kookpunt.
 Destilleren = homogene mengsels scheiden door te opwarmen, maar je behoudt
wel alle stoffen  stof met laagste kookpunt verdampt  de gassen
die ontstaan daardoor worden door een liebigkoeler geleid  liebigkoeler
condenseert ze  dat is een destillaat
 Extraheren = aan de hand van een oplosmiddel kunnen geur-, kleur- en
smaakstoffen (extract) onttrokken worden, steunt op verschil in oplosbaarheid.

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