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General Formulae

A common question to be asked in the exam, both in National 5 and Higher (and for GCSE and A-Level too) is to provide the general formula for a specific homologous series.   This type of question can come in two forms: specifying the homologous series in question and asking, “what is the general formula for…

Feel the Force – Noncovalent interactions

One for the Highers here – and linked quite closely to my own research.  Intermolecular forces.   Believe it or not, you will have encountered the effects of these forces everyday of your lives.  They are the reason why certain chemicals dissolve in water, and why others don’t; why water expands upon cooling, whilst most other liquids contract;…