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Because the water is not absorbed in these salts; this water is contained in the crystalline structure.
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∙ 10y ago
Hydrated salts appear dry because they have incorporated water molecules within their crystal lattice structure. This water is not easily visible on the surface of the salt, giving the appearance of dryness. However, if the hydrated salt is heated or exposed to low humidity conditions, the water molecules can be released, causing the salt to become visibly wet.
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Why are common salts called hydrated salts?
Only some salts have hydrates, not all. These salts contain in the formula water of crystallization.
How are hydrated salts different from anhydrous salts?
A hydrated salt has a number of waters of hydration combined to each molecule of salt whereas an anhydrous salt is one that has had its waters of hydration removed. An example of a hydrated salt is nickel sulfate hexahydrate, NiSO4·6H2O. The waters of hydration can be removed by a simple heating, resulting in NiSO4(s) + 6H2O(g).
What is a 'dry polymer'?
A dry polymer is one that is not in solution. they are used where moisture would create an issue. Sometimes dry polymer powder is added to cement so that when the cement is hydrated to make concrete, the dry polymer is hydrated at the same time. If a wet polymer, or polymer solution were used, it would react with the cement and make it unusable.
Why hydration enthalpy of alkali metal ion decrease with increase in atomic radii?
Li+ has maximum degree of hydration and for this reason lithium salts are mostly hydrated
What does efflorescence and deposition of salts have in common?
Efflorescence is a phenomenon of dehydration of some hydrated compounds. Deposition is a change of phase, from gas to solid. I think that these processes have nothing in common.
Why is common salt called hydrated salts?
Sodium chloride (NaCl) is not a hydrated salt.
Why are common salts called hydrated salts?
Only some salts have hydrates, not all. These salts contain in the formula water of crystallization.
What is haydrated salts?
A hydrated salt contain water of crystallization.
What is a crystalline substance that water?
You might be thinking of hydrated salts. Examples include hydrated Copper Sulfate (CuSO4 . 5H2O)
Do all hydrated salts change coulour when they lose their waters of crystallisation?
No, only some salts change the color after dehydration.
When a beryllium salts is dissolved in water what species are present in such a solution?
probably hydrated beryllium salts like BeCl2.H20
What is the functions of oils?
to keep the skin hydrated so it doesnt dry out. :) to keep the skin hydrated so it doesnt dry out. :)
What is crystalline substances that contains water?
You might be thinking of hydrated salts. Examples include hydrated Copper Sulfate (CuSO4 . 5H2O)
Is heating hydrated sodium carbonate powder chemical or physical change?
Dehydration of hydrated salts is usually considered to be a physical change.
When do hydrated salts appear?
When an anhydrous salt retain water in the crystalline structure.
What is the function of skin oils?
to keep the skin hydrated so it doesnt dry out. :) to keep the skin hydrated so it doesnt dry out. :)
How are anhydrous salts prepared?
Anhydrous salts prepared by evaporating the water contained in a hydrated salt. However, anhydrous salts are non-electrolytes, meaning they can't pass an electric current.
