In Search of Solutions: Pigments

No comments

In Search of Solutions: Chromatography is used to identify unique pigments extracted from various plant materials. Linking to topics on chromatography and extraction.

Downloads

Pigments
Experiment | PDF, Size 22.47 kb
In search of solutions: Index and background
PDF, Size 65.81 kb

Download all

No comments

Level

Use

Specification

Wales
- GCSE
  - 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
        (j) chromatographic data analysis and Rf values
  - 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
        (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
Northern Ireland
- GCSE
  - 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;
        1.9.7 interpret a paper chromatogram including calculating Rf values;
  - 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;
        1.9.7 interpret a paper chromatogram including calculating Rf values;
Republic of Ireland
- Junior Cycle
  - Science
    - The nature of science
      - Investigating science
        3. Design, plan and conduct investigations; explain how reliability, accuracy, precision, fairness, safety, ethics, and the selection of suitable equipment have been considered.
        4. Produce and select data (qualitatively/ quantitatively), critically analyse data to identify patterns and relationships, identify anomalous observations, draw and justify conclusions.
        5. Review and reflect on the skills and thinking used in carrying out investigations, and apply their learning and skills to solving problems in unfamiliar contexts.
    - 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.
      - Systems and interactions
        6. Investigate the properties of different materials including solubilities, conductivity, melting points and boiling points.

Ideas
5 ways to teach paper chromatography
2022-08-31T07:30:00Z
Brush up on your chromatography teaching skills with these teacher-tested tips
Ideas
Creating a culture of error
2022-08-10T08:45:00Z
Use these 5 teacher-tested tips to help your students learn (and grow) from their mistakes
News
Improve students’ understanding of stereoisomers with these evidence-based ideas
2022-07-07T07:30:00Z
Discover three effective methods to help your students understand molecular rotations

No comments yet

You're not signed in.

Only registered users can comment on this article.

More Resources

Resource
The chemistry of iron | 16–18 years
Practice questions give context to transition metal chemistry and equilibria using the examples of haemoglobin and iron
Resource
The politics of energy – structure strip | 14–16 years
Develop your learners reading comprehension and writing skills while revisiting topics from organic and atmospheric chemistry
Resource
Phytomining | 14–16 years
Explore cutting edge industrial solutions to traditional mining with these differentiated resources which include an interactive cloze, sequencing activity and a storyboard template.

In Search of Solutions: Pigments

Downloads

Pigments

In search of solutions: Index and background

Level

Use

Category

Specification

Related articles

5 ways to teach paper chromatography

Creating a culture of error

Improve students’ understanding of stereoisomers with these evidence-based ideas

No comments yet

Only registered users can comment on this article.

More Resources

The chemistry of iron | 16–18 years

The politics of energy – structure strip | 14–16 years

Phytomining | 14–16 years