In Search of Solutions: Indicator puzzle

No comments

In Search of Solutions: Extract colours from plants and use them as chemical indicators. Linking to topics on buffers, acids/alkalis and indicators.

Downloads

Indicator puzzle
Experiment | PDF, Size 19.61 kb
Index and background
PDF, Size 65.81 kb

Download all

No comments

Level

Use

Specification

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.
Scotland
- Advanced Higher
  - SQA Chemistry
    - Inorganic and Physical Chemistry
      - Chemical equilibrium
        Indicators
        Indicators are weak acids for which the dissociation can be represented as: HIn(aq) + H₂O(l) ⇌ H₃O⁺(aq) + In⁻(aq)
- National 5
  - SQA Chemistry
    - 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.
        Neutralisation reactions
        In an acid-base titration, the concentration of the acid or base is determined by accurately measuring the volumes used in the neutralisation reaction. An indicator can be added to show the end-point of the reaction
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

Exhibition chemistry
The reaction between sodium and chlorine
2022-04-18T08:30:00Z
Use this to demonstrate this classic and spectacular chemistry experiment
Ideas
The fast guide to microscale practical work
2022-03-25T09:00:00Z
Every chemistry teacher’s must-have guide to this no-fuss method for practical work
Ideas
Escape the classroom: and try microscale chemistry
2022-03-23T09:31:00Z
Escape room puzzles based on simple microscale reactions for students

No comments yet

You're not signed in.

Only registered users can comment on this article.

More Resources

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.
Resource
Analytical chemistry in Ireland
Worksheets, project-based learning tasks and contextualisation stories to develop a core understanding of analytical chemistry
Resource
Scrutinising shampoo bottles | 11–14 years
Delve into the world of cosmetics labelling with this activity which takes a close look at the ingredients printed on the back of your shampoo bottles. What are they for and should we be concerned about any of them?

In Search of Solutions: Indicator puzzle

Downloads

Indicator puzzle

Index and background

Level

Use

Category

Specification

Related articles

The reaction between sodium and chlorine

The fast guide to microscale practical work

Escape the classroom: and try microscale chemistry

No comments yet

Only registered users can comment on this article.

More Resources

Phytomining | 14–16 years

Analytical chemistry in Ireland

Scrutinising shampoo bottles | 11–14 years