In Search of Solutions: Funny felt pens

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In Search of Solutions: Use chemical wizardry to change the colour of felt pens! Linking to topics on chromatography, acids/alkalis, indicators, dyes and polar/nonpolar solvents.

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Funny felt pens
Experiment | PDF, Size 15.05 kb
Index and background
PDF, Size 65.81 kb

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Level

16-18 years

Use

Specification

Northern Ireland
- GCSE
  - CCEA Chemistry
    - Unit 1: Structures, Trends, Chemical Reactions, Quantitative Chemistry and Analysis
      - 1.9 Chemical analysis
        1.9.5 investigate practically how mixtures can be separated using filtration, crystallisation, paper chromatography, simple distillation or fractional distillation (including using fractional distillation in the laboratory to separate miscible liquids…
        1.9.6 describe paper chromatography as the separation of mixtures of soluble substances by running a solvent (mobile phase) through the mixture on the paper (stationary phase), which causes the substances to move at different rates over the paper;
  - CCEA Double award science
    - Unit C1: Structures, Trends, Chemical Reactions, Quantitative Chemistry and Analysis
      - 1.9 Chemical analysis
        1.9.5 investigate practically how mixtures can be separated using filtration, crystallisation, paper chromatography, simple distillation or fractional distillation (including using fractional distillation in the laboratory to separate miscible liquids…
        1.9.6 describe paper chromatography as the separation of mixtures of soluble substances by running a solvent (mobile phase) through the mixture on the paper (stationary phase), which causes the substances to move at different rates over the paper;
Republic of Ireland
- Junior Cycle
  - Science
    - Chemical world
      - Systems and interactions
        8. Investigate reactions between acids and bases; use indicators and the pH scale
      - 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
England
- GCSE
Scotland
- Higher
  - SQA Chemistry
    - 3. Chemistry in society
      - (e) Chemical analysis
        (i) Chromatography
        Chromatography is a technique used to separate the components present within a mixture. Chromatography separates substances by making use of differences in their polarity or molecular size.
        (ii) Volumetric analysis
        Titration is used to determine, accurately, the volumes of solution required to reach the end-point of a chemical reaction. An indicator is normally used to show when the end-point is reached. Titre volumes within 0.2 cm³ are considered concordant.
- National 5
  - SQA Chemistry
    - Chemistry in society
      - Chemical analysis
        Analytical methods
        An indicator is normally used to show when the end-point is reached.
    - Chemical changes and structure
      - Acids and bases
        pH
        The pH scale is an indication of the hydrogen ion concentration and runs from below 0 to above 14.
        Acidic solutions have a higher concentration of H⁺(aq) ions than OH⁻(aq) and have a pH below 7.
        Alkaline solutions have a higher concentration of OH⁻(aq) ions than H⁺(aq) ions and have a pH above 7.
Wales
- GCSE
  - WJEC Chemistry
    - Unit 1: CHEMICAL SUBSTANCES, REACTIONS and ESSENTIAL RESOURCES
      - 1.1 THE NATURE OF SUBSTANCES AND CHEMICAL REACTIONS
        (j) chromatographic data analysis and Rf values
  - WJEC Combined science
    - Unit 2: Chemistry 1
      - 2.1 THE NATURE OF SUBSTANCES AND CHEMICAL REACTIONS
        (j) chromatographic data analysis and Rf values
- A/AS level
  - WJEC Chemistry
    - Unit 4: ORGANIC CHEMISTRY AND ANALYSIS
      - 4.8 Organic synthesis and analysis
        (g) use of chromatographic data from TLC/paper chromatography, GC and HPLC to find the composition of mixtures

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