Gravimetric Determination of Water in Hydrat... / ID: 751834

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ID number:751834

Author: Anonymous author (1)

Evaluation:

Published: 01.12.1996.

Language: English

Level: Secondary school

Literature: n/a

References: Not used

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Discussion: The MgCl2 had to be heated to constant mass to give as accurate a reading as possible for the mass of water evaporated. The crucible was cooled before weighing so it could be transferred to the desiccator without burning your hands.
The value of n calculated in the experiment and the true value of n are different due to errors in the experiment such as the transferring of materials could cause a different loss each time.
Conclusion: The value 'n' is 5 hence the formula is MgCl2.5H2O
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Gravimetric Determination of Water in Hydrated Magnesium Chloride
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Gravimetric Determination of Water in Hydrated Magnesium Chloride