All Quantitative chemistry and stoichiometry articles – Page 2
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ResourceLow sodium salt substitutes
This resource uses a titration method to analyse the chemical composition of Lo-Salt, a reduced sodium salt alternative.
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Resource
Use of salt in cooking, part 2
This resource explores why salt is always added to the water when cooking green vegetables.
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Resource
Problem solving tutor
Use this online interactive tutorial to teach three different methods for solving problems in quantitative chemistry. Video: How to use the problem solving tutor
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Resource
The volume of 1 mole of hydrogen gas
Calculate the volume of one mole of hydrogen at room temperature and pressure by reacting magnesium with hydrochloric acid
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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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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.
