empirical formula magnesium oxide practical

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kxylah
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you know for the practical where you heat magnesium to make magnesium oxide so you can calculate the empirical formula and stuff, we have been given some questions to do after the practical and one of the question is 'what was the purpose of breaking up the magnesium oxide whilst heating the contents of the crucible strongly for 5 minutes' anyone know what the answer could be? It's a 5 mark question...
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Pigster
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Think surface area...
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kxylah
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(Original post by Pigster)
Think surface area...
If you increase the surface area that the magnesium oxide is spread over, any unreacted magnesium will be exposed so it can react with the oxygen?
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Pigster
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Also S.A.s affect on rates might be important.
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KingAuthor
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We have done that practical but there we weren't told what marks were for each question... Oh well lol but yeah I put something along the lines of breaking it up and allowing more oxygen to react magnesium that hasn't been reacted with.
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skymarie
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ye im doing it now and probs surface area
4 years later with a reply haha
how ya doingv
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