Chemistry for the gifted and talented: chromatography

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This activity extends the students’ understanding of chromatography. It links chromatography with particle theory and develops the tools of analogy and modelling.

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Chromatography worksheet
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Level

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Specification

England
- GCSE
Scotland
- Higher
  - SQA Chemistry
    - 3. Chemistry in society
      - (e) Chemical analysis
        (i) Chromatography
        The details of any specific chromatographic method or experiment are not required. Depending on the type of chromatography used, the identity of a component can be indicated either by the distance it has travelled, or by the time it has taken to travel…
Wales
- GCSE
  - WJEC Chemistry
    - Unit 1: CHEMICAL SUBSTANCES, REACTIONS and ESSENTIAL RESOURCES
      - 1.1 THE NATURE OF SUBSTANCES AND CHEMICAL REACTIONS
        (i) atoms/molecules in mixtures not being chemically joined and mixtures being easily separated by physical processes such as filtration, evaporation, chromatography and distillation
  - WJEC Combined science
    - Unit 2: Chemistry 1
      - 2.1 THE NATURE OF SUBSTANCES AND CHEMICAL REACTIONS
        (i) atoms/molecules in mixtures not being chemically joined and mixtures being easily separated by physical processes such as filtration, evaporation, chromatography and distillation
Northern Ireland
- A/AS level
  - CCEA Chemistry
    - Unit AS 1: Basic Concepts in Physical and Inorganic Chemistry
      - 1.9 Acid-base titrations
        1.9.6 calculate concentrations and volumes for titration calculations;
        1.9.7 demonstrate knowledge of the term molarity, M, and the units of concentration, for example mol dm⁻³ and g dm⁻³;
Republic of Ireland
- Junior Cycle
  - Science
    - Chemical world
      - Building blocks
        2. Develop and use models to describe the nature of matter; demonstrate how they provide a simple way to to account for the conservation of mass, changes of state, physical change, chemical change, mixtures, and their separation.
- Leaving Certificate
  - Chemistry
    - 7. Organic chemistry
      - 7.5 Chromatography and Instrumentation in Organic Chemistry
        Depth of treatment
        Chromatography as a separation technique in which a mobile phase carrying a mixture is caused to move in contact with a selectively absorbent stationary phase.

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Class experiment
Leaf chromatography

In association with Nuffield Foundation

Investigate leaves using paper chromatography with this classroom experiment and follow-up questions