Chemical calculations using de Donder ratios
Issue 369 | Page 8 | Published Jun 2018
Description
The algebra of quantities - how it works and how it could be used in student's chemical calculations.
The algebra of quantities should be used in all scientific calculations. Accordingly, we always take the values of quantities to be the product of a numerical value and a unit, and we manipulate the symbols of quantities, numerical values and units by the ordinary rules of algebra. As most teachers are unlikely to be familiar with the method, this article explains how it works, and how it could be used in typical chemical calculations.
More from this issue
An EU-funded project with a focus on developing methodologies to counter gender disparities in STEM uptake in secondary schools.
Learn how to set up a hydrogen fuel cell by extending an activity most schools already do – the electrolysis of ‘water’.
Spending more time problem solving in collaborative groups can help 16- to 19-year-olds (A-level physics students) improve their use of...