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The mole is a concept that you'll see everywhere in chemistry, from GCSE through A level. Although this is the case, it can be very easy to lose sight of what it actually is and why we use it, as your tea...

Fractional distillation relies on different fractions in the organic mixture having different boiling points. The difference in these boiling points could be caused by several things but the main determin...

Each carbon atom in graphite is bonded to three other carbon atoms. These carbon atoms are linked by covalent bonds - which are very strong. Graphite is arranged in sheet like structures and between each ...

CH3COOH + H2O ⇌ CH3COO– + H3O+

bond making is exothermic, bond breaking is endothermic. It takes more energy to break the bonds than the energy released in making new bonds