All Acids and bases articles – Page 6
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ResourceDefining a ‘weak’ acid
Starting from its Ka (or pKa) value, learners calculate as much information as you need to show what is meant by ‘weak’ in weak acid.
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DemonstrationAmmonia 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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ResourceOrganising your understanding
Three activities that progressively stretch learners’ understanding of these key topics using Venn-like diagrams to organise information
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ResourceThermodynamics 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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ResourceManufacturing 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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ResourceChemistry Vignettes: Chemistry of the Elements
A series of short screencasts to introduce the chemistry of selected elements.
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ResourceChemistry Vignettes: Acid and Bases
A series of short screencast videos to introduce acids and bases
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DemonstrationIndicators 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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Class experimentThe 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.
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Class experimentProperties of alkali metal compounds
Try this class practical to explore the physical and chemical properties of various alkali metal compounds. Includes kit list and safety instructions.
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Class experimentEquilibria involving carbon dioxide in aqueous solution
Use this demonstration or class practical to illustrate changes to equilibria in carbonated soda water. Includes kit list and safety instructions.
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ResourceInvisible inks
In this experiment, students test a variety of substances to see if they can be used as an invisible ink.
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DemonstrationWhat makes a substance acidic?
Try these experiments to investigate acidity and learn how the acidic properties of some substances require water. Includes kit list and safety instructions.
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Exhibition chemistryAlkali metal roulette
Declan Fleming takes the reactions of alkali metals in water a step further
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DemonstrationInvestigating the role of water in acidity
Try this practical or demonstration to explore the importance of water for acidity using hydrogen chloride and methylbenzene. Includes kit list and safety instructions.
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DemonstrationUniversal indicator ‘rainbow’
Try this demonstration to create a rainbow effect using universal indicator, hydrochloric acid and sodium hydroxide. Includes kit list and safety instructions.
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DemonstrationThe properties of hydrogen chloride
Use this demonstration and practical to investigate properties of hydrogen chloride, such as its solubility in water. Includes kit list and safety instructions.
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Class experimentThe rate of reaction of magnesium with hydrochloric acid
A class practical on reacting magnesium with hydrochloric acid and how to measure the rate of reaction. Includes kit list and safety instructions.