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Dorothy Warren
Acids and alkalis is a colourful topic that students often meet at the start of their secondary education and go on to revisit several times before completing their studies. It is a topic that comes with associated numbers, namely the pH scale, that are not always fully understood by students. A good understanding of "number" and "relative scale" can help students overcome some of the common misconceptions and difficulties. An explanation of the underlying mathematical principles can prove extremely helpful to students. However, to fully appreciate the pH scale, an understanding of mathematics must be applied alongside scientific observations, so that all influencing factors can be taken into account. The examples chosen within this article have been limited to strong acids and strong alkalis, to make it easier to highlight the mathematics.
