All Acids and bases articles – Page 5
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ResourceChemistry in your cupboard: Harpic
Link the post-16 topics of group bonding, acid rain, equilibria and Le Chateliers principle and strong and weak acids to the topic of removing limescale. Learn about a range of real life contexts for these chemical ideas through written material, and questions to encourage learning and test understanding.
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Chemistry in your cupboard: Calgon
Link the post-16 topics of group 2 elements, acids and bases and polymerisation to the topic of hardness of water.
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Chemistry in your cupboard: Finish
Link the topics of rates of reaction, group 1, 2 and 7 elements, proteins, fats and carbohydrates and acids and bases to the topic of dishwasher cleaning. Learn about a range of real life contexts for these chemical ideas through written material, and questions to encourage learning and test understanding.
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Acid-base solutions simulation
Explore the basics of pH with this simulation. Add a variety of common solutions and modify the concentrations to see the effect on pH.
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pH scale basics simulation
Explore the basics of pH using this simulation. Add a variety of common solutions, modify the concentration and see the effects on pH. Video: How to use the PhET pH scale basics simulation
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pH scale advanced simulation
Use this advanced pH simulator to view, modify, and visualise solutions with different ion ratios. Explore macroscopic, microscopic, and custom views.
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The 2011 International Year of Chemistry Experiment
Worksheets and data from the 2011 mass participation experiment. Measure the acidity (pH) and salinity of your local water.
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On the acid trail
Find out and list as much information as possible about a weak acid from experimental results shown.
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H⁺ ions in water
Estimate the number of H⁺(aq) ions in a single drop of: water; 1.0 mol dm⁻³ HCl; 1.0 mol dm⁻³ NaOH.
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A weak acid
Starting from its Ka (or pKa) value, calculate or find as much information as you need to show what is meant by ‘weak’ in weak acid.
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Experiment
Ammonia fountain demonstration
Try this experiment to make a miniature chemical fountain using only soluble ammonia and atmospheric pressure. Includes kit list and safety instructions.
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Organising your thoughts
These activities are designed to help students clarify the relationship between various parts of their knowledge and develop the skill of using Venn-like diagrams in organising their understanding.
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Thermodynamics and equilibria of the Solvay process
A worksheet with questions on the thermodynamics and acid-base aspects of the Solvay process and the uses of the products. This resource is part of the ‘Sodium carbonate – a versatile material’ resources collection, which presents learning material based on the manufacture and uses of sodium carbonate made by the ...
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Manufacturing sodium carbonate – an overview
An overview for teachers of sodium carbonate and sodium hydrogencarbonate manufacture (especially by the Solvay process) and of the uses of these products. This resource is part of the ‘Sodium carbonate – a versatile material’ resources collection, which presents learning material based on the manufacture and uses of sodium carbonate ...
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Chemistry Vignettes: Chemistry of the Elements
A series of short screencasts to introduce the chemistry of selected elements.
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Chemistry Vignettes: Acid and Bases
A series of short screencast videos to introduce acids and bases
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Experiment
Indicators and dry ice demonstration
Create bubbles, ‘fog’ and a colour change adding dry ice to alkaline ammonia or sodium hydroxide solution in this demonstration. Includes kit list and safety instructions.
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Experiment
The reaction of carbon dioxide with water
Form a weak acid from the reaction of carbon dioxide with water in this class practical. Includes kit list and safety instructions.
