Tag: acids

Acids, Alkalis & The pH Scale

Acids, Alkalis, and the pH Scale

Acids and Alkalis - The pH Scale
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The pH scale is something we’re all familiar with; most people will remember it from school chemistry lessons. It’s the scale used to rank how strong an acid (or alkali) a solution is. The colours associated with each number correspond to the colour that universal indicator turns in solutions of that particular pH. A fair proportion of people probably don’t know the chemistry behind the pH scale, though – where exactly do these numbers come from?

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