A student obtained the data below after performing a similar experiment described in this laboratory. 1. Mass of crucible and cover = 19.8 g 2. Mass of crucible, cover and hydrate = 23.0 g 3. Mass of crucible, cover and anhydrous salt after heating = 21.5 g Calculate the percentage of water lost by the hydrate 46.9% B. 90.0% 45.5% 39.3%

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Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".