Formula of magnesium oxide

IB Chemistry: Formula of magnesium oxide

Many students will have done this experiment before they started the Diploma programme so some teachers are surprised I include it. It is very simple (so there is no separate worksheet) but I find it worthwhile for three reasons. The first is to show that using simple materials can sometimes be better. Traditionally a porcelain crucible is used but I used to find that these often cracked in the heat and were expensive...

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