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An investigation into the water of crystallisation present in Hydrated Magnesium Sulphate
Member rating: No Rating | Words: | Submitted: Fri Jan 28 2005
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An investigation into the water of crystallisation present in Hydrated Magnesium Sulphate Aim The aim of this experiment is to investigate the amount of water of crystallisation is present in the hydrous powder, and to investigate whether or nor the substance is MgSO4.7H2O Hypothesis I predict that if I take a mass of approximately 2.46g of hydrated magnesium sulphate and decompose it by heating until all of the water of crystallisation has been driven off, I should be left with a mass of approximately 1.2g anhydrous Magnesium Sulphate. This size of the starting mass was chosen because it is both practical to the experiment, due to limited time and supplies, but large enough to create accurate readings on a 3 decimal placed set of scales. Calculating the molecular masses of the anhydrous substance created the figures 246 and 120. These calculations follow: Equipment Apparatus Bunsen burner; Heatproof mat; Tripod; Pipe clay Triangle; 10 g Hydrated Magnesium sulphate; Crystallising dish; Sensitive scales; Tongs; Scoop; Stopwatch; Gas supply; Goggles. Diagram Method Firstly, a...
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