All Experiment articles – Page 14
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ExperimentAmmonium dichromate volcano
Try this demonstration to create a mini volcanic eruption illustrating the decomposition of ammonium dichromate. Includes kit list and safety instructions.
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ExperimentFinding the formula of copper(II) oxide
Use this class practical with your students to deduce the formula of copper(II) oxide from its reduction by methane. Includes kit list and safety instructions.
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ExperimentA test to distinguish between ethanol and methanol
A class practical to distinguish between methanol and ethanol using the iodoform reaction. Includes kit list, safety instructions, procedure and teaching notes.
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ExperimentTesting the pH of oxides
Use this class practical to investigate the pH of different metal and non-metal oxides using a universal indicator. Includes kit list and safety instructions.
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ExperimentAn equilibrium using copper(II) and ammonia
Try this practical to explore an equilibrium involving copper(II) ions, with copper(II) sulfate, ammonia and sulfuric acid. Includes kit list and safety instructions.
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ExperimentCatalysis of a sodium thiosulfate and iron(III) nitrate reaction
Investigate the effect of transition metal catalysts on the reaction between iron(III) nitrate and sodium thiosulfate. Includes kit list and safety instructions.
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ExperimentTesting the hardness of water
Try this practical with your students to measure the hardness of water samples and investigate the effect of boiling. Includes kit list and safety instructions.
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ExperimentSulfuric acid as a dehydrating agent
Try these two demonstrations to illustrate the difference between dehydration and drying using sulfuric acid. Includes kit list and safety instructions.
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ExperimentUnsaturation in fats and oils
Use this class practical to investigate the amounts of unsaturated fats and oils in different foods. Includes kit list and safety instructions.
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ExperimentCombustion of hydrogen in air
Try this demonstration or class experiment to investigate how varying amounts of fuel and oxygen affect combustion. Includes kit list and safety instructions.
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ExperimentThe ‘Old Nassau’ or Halloween clock reaction
Illustrate dramatic colour changes as a result of redox and precipitation reactions in this vivid demonstration. Includes kit list and safety instructions.
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ExperimentHow can hardness in water be removed?
Investigate the effects of three treatments for softening hard water in this class practical and demonstration. Includes kit list and safety instructions.
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ExperimentExothermic metal displacement reactions
Try this class experiment to explore what happens when different metals are added to a copper(II) sulfate solution. Includes kit list and safety instructions.
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ExperimentSupercooling and the energetics of freezing
Explore what happens when a liquid is supercooled using sodium thiosulfate in this class practical. Includes kit list and safety instructions.
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ExperimentPreventing rust
Try this practical to test methods for preventing rust on iron nails, including painting, greasing and sacrificial protection. Includes kit list and safety instructions.
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ExperimentPreferential discharge of cations during electrolysis
Use this practical to show that metal cations are preferentially discharged, in relation to the metal’s position in the reactivity series. Includes kit list and safety instructions.
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ExperimentEmulsifiers in the kitchen
Test a range of common ingredients to see which ones stabilise an oil and water emulsion in this class practical. Includes kit list and safety instructions.
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ExperimentFat-pan fires and the conditions for combustion
Use this demonstration to illustrate the conditions required to start combustion, and how to put out a pan fire safely. Includes kit list and safety instructions.
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ExperimentThe formation of a sol
Convert a rusty-brown precipitate of iron(III) hydroxide into a cherry-red iron(III) oxide sol in this demonstration. Includes kit list and safety instructions.
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ExperimentThe properties of alcohols
Ethanol and propan-1-ol are tested for pH, reaction with sodium, combustion and oxidation with acidified dichromate(VI) solution. Includes kit list and safety instructions.