In Search of Solutions: Colour creation

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In Search of Solutions: Use acid/base titration and indicator solution to produce colourful solutions. Linking to topics on acids/alkalis and indicators.

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Colour creation
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Northern Ireland
- GCSE
  - CCEA Chemistry
    - Unit 1: Structures, Trends, Chemical Reactions, Quantitative Chemistry and Analysis
      - 1.8 Acids, bases and salts: Indicators and pH
        1.8.3 interpret given data about universal indicator (colour or pH) to classify solutions as acidic, alkaline or neutral and to indicate the relative strengths of acidic and alkaline solutions according to the following classification: pH 0–2 strong acid…
  - CCEA Double award science
    - Unit C1: Structures, Trends, Chemical Reactions, Quantitative Chemistry and Analysis
      - 1.8 Acids, bases and salts: Indicators and pH
        1.8.2 interpret given data about universal indicator (colour or pH) to classify solutions as acidic, alkaline or neutral and to indicate the relative strengths of acidic and alkaline solutions according to the following classification: pH 0–2 strong acid…
Republic of Ireland
- Junior Cycle
  - Science
    - Chemical world
      - Systems and interactions
        8. Investigate reactions between acids and bases; use indicators and the pH scale
- Leaving Certificate
  - Chemistry
    - 9. Environmental chemistry: water
      - 9.1 pH Scale
        Depth of treatment
        pH scale. Use of universal indicator paper or solution. Limitations of the pH scale - usefulness confined to dilute aqueous solutions.
        Choice of indicator.
England
- GCSE
  - OCR Chemistry B: 21st century
    - C6 Making useful chemicals
      - C6.1 What useful products can be made from acids?
        C6.1.4 recall that relative acidity and alkalinity are measured by pH including the use of universal indicator and pH meters
  - OCR Combined science B: 21st Century
    - C6 Making useful chemicals
      - C6.1 What useful products can be made from acids?
        C6.1.4 recall that relative acidity and alkalinity are measured by pH including the use of universal indicator and pH meters
Scotland
- Higher
  - SQA Chemistry
    - 3. Chemistry in society
      - (e) Chemical analysis
        (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 Combined science
    - Unit 5: Chemistry 2
      - 5.2 ACIDS, BASES AND SALTS
        (a) substances as acidic, alkaline or neutral in terms of the pH scale, including acid/alkali strength
  - WJEC Chemistry
    - Unit 2: CHEMICAL BONDING, APPLICATION OF CHEMICAL REACTIONS and ORGANIC CHEMISTRY
      - 2.2 ACIDS, BASES AND SALTS
        (a) substances as acidic, alkaline or neutral in terms of the pH scale, including acid/alkali strength

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In Search of Solutions: Colour creation

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Colour creation

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