Water of Crystallisation
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A series of flashcards to help understand key concepts related to water of crystallisation, including definitions and calculations.
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10 Terms
Water of Crystallisation
Water molecules associated with many ionic compounds.
Hydrated Salt
A compound containing water of crystallisation.
Anhydrous
A term describing a compound without water.
Dehydrate
To remove water from a substance.
Molecular Mass
The mass of a molecule calculated from the sum of the atomic masses of its constituent atoms.
Simplest Ratio
The lowest whole number ratio of moles of different substances.
Empirical Formula
The simplest whole-number ratio of elements in a compound.
Formula for hydrated sodium thiosulfate
Na2S2O3.5H2O, indicating 5 moles of water of crystallisation.
Calculation for x in Na2S2O3.xH2O
x represents the number of moles of water in the hydrated form.
Moles of Anhydrous Salt
The amount of anhydrous salt in moles determined from its mass and molecular mass.