All Quantitative chemistry and stoichiometry articles – Page 3
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Resource
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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Experiment
Determining relative molecular mass by weighing gases
Use this demonstration to determine the relative molecular masses of different gases using the ideal gas equation. Includes kit list and safety instructions.
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Experiment
Determining the relative molecular mass of butane
Use this demonstration to calculate the relative molecular mass of butane using simple apparatus. Includes kit list and safety instructions.
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Experiment
The effect of pressure and temperature on equilibrium | Le Chatelier's principle
Try this demonstration to explore the effects of pressure and temperature on an equilibrium mixture with your students. Includes kit list and safety instructions.
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Experiment
The effect of concentration and temperature on an equilibrium | Le Chatelier's principle
Try this demonstration to illustrate how changing chlorine concentration or temperature shifts the position of an equilibrium. Includes kit list and safety instructions.
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Experiment
Estimating the concentration of bleach
Compare the chlorine content and concentration of sodium hypochlorite in different bleaches in this class practical. Includes kit list and safety instructions.
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Experiment
Finding 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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Experiment
Unsaturation 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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Experiment
The composition and formula of water
Try this demonstration to determine the formula of water through the reaction of copper(II) oxide with hydrogen. Includes kit list and safety instructions.
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Experiment
Comparing heat energy from burning alcohols
Investigate the amounts of heat energy produced by the combustion of different alcohols in this class experiment. Includes kit list and safety instructions.
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Experiment
Finding the formula of hydrated copper(II) sulfate
In this experiment students will measure the mass of hydrated copper(II) sulfate before and after heating and use mole calculations to find the formula.
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Experiment
Determining the relative atomic mass of magnesium
Use this practical to determine the relative atomic mass of magnesium using its reaction with hydrochloric acid. Includes kit list and safety instructions.
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Experiment
The effect of concentration on equilibrium | Le Chatelier's principle
Illustrate the reversible reaction between bismuth(III) oxychloride and bismuth(III) chloride in this demonstration. Includes kit list and safety instructions.
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Resource
Problem based practical activities
A collection of 10 practical activities where students apply their understanding of a concept to devise a solution to a ‘real-life’ scenario.
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Experiment
The combustion of iron wool
Try this quick teacher demonstration to demonstrate the increase in mass as iron wool is heated in air. Includes kit list and safety instructions.
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Experiment
A thermometric titration
Use this class practical to practise locating end-points in titration by measuring temperature during the reaction. Includes kit list and safety instructions.
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Experiment
A microscale acid–base titration
Use microscale titration to complete an acid–base neutralisation with sodium hydroxide in this class practical. Includes kit list and safety instructions.
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Resource
Vintage titrations: tannin in wine
Explore Redox titrations using potassium manganate(VII), with this tannin experiment. Includes kit list and safety instructions.
