All Quantitative chemistry and stoichiometry articles – Page 2
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Experiment
Energy content in foods
Try this class experiment to investigate how much energy different foods contain. Includes kit list and safety instructions.
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Resource
The effect of cooking on vitamin C in cabbage
An experiment to determine how the vitamin C content of cabbage varies with the method of cooking.
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Resource
Measuring vitamin C in food
Get your students to test their fruit and vegetables for vitamin C using simple kitchen equipment and household items
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News
Rating rate laws
How to help students gain a deeper understanding of mathematical model-building
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Exhibition chemistry
Containing the dichromate volcano
An updated and safer version of this classic, spectacular chemistry demonstration
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Maths
Summation and the sigma notation
Paul Yates applies this handy shorthand to chemistry calculations in mass and enthalpy
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Resource
Mass and dissolving
Chemistry is a conceptual subject and, in order to explain many of these concepts, teachers use models to describe and explain the microscopic world and relate it to the macroscopic properties of matter. This resource is designed to provide strategies for dealing with some of the misconceptions that students have ...
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Resource
Sustainable development and green chemistry
The Inspirational chemistry chapter ‘Sustainable development and green chemistry’. This chapter suggests games, activities, practicals and demonstrations that prompt students to think critically about how to make every day processes more environmentally friendly and sustainable.
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News
Why titrate?
A chemistry teacher wanted to know why professional chemists carry out titrations …
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Resource
Concentration simulation
Explore concentration with this interactive simulation. Add different solutes to water and adjust the controls to change their concentration:
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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.
