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Gravimetric determination of water in Hydrated Barium Chloride
Member rating: No Rating | Words: | Submitted: Fri Jan 20 2006
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Gravimetric determination of water in Hydrated Barium Chloride. Aim: - The aim of this experiment is to determine the number of moles of water molecules of crystallisation of a sample of hydrated Barium Chloride. This can be calculated using Gravimetric Analysis, which involves comparing the mass of the hydrated with the mass of the anhydrous salt. Hydrated Barium Chloride is heated to constant mass. The number of moles of water of crystallisation (n in BaCl2. H2O) can be found by calculating the loss of mass in the sample. Procedure: - All absorbed moisture was removed from the crucible by heating over a Bunsen burner and then by cooling in a dessicator. The crucible was then weighed and approximately 3g of Hydrated Barium Chloride was added to the crucible (this was done wearing gloves and in a fume cupboard). The crucible and contents was then weighed on a balance. The crucible was...
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