This lesson describes meaning of the mole and shows how this measurement is used in a range of calculations. The clear lesson PowerPoint presentation and accompanying question worksheet have been designed to cover points 1.50 & 1.51 of the Edexcel GCSE Chemistry specification and also covers those points in the Chemistry section of the Combined Science course. This lesson has been specifically written to explain the concept in a concise manner so that the key details are understood and embedded. Students are shown how to recognise when a mole calculation requires them to use Avogadro’s constant and when they should the formula including the relative formula mass.
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very clear well explained
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