What are three ways in which water molecules are bonded to anhydrous salt to form hydrate?
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Water reacts with many salts in the process of crystallization to form it's hydrates.
we know that Hydrates salt having water within their crystal .
For example -
Sodium Sulphate Decahydrate (Na₂SO₄.10 H₂O).
Sodium tetraborate decahydrate ( Na₂B₄O₇.10 H₂O).
we know that mostly water acts as Ligand in hydrates.
Note :- In the coordination complex, Ionic attraction occurs. Also the hydrogen bonds do occurs Between water (H₂O )molecule and its anion.
Now The 3 way in which water may be occurs in anhydrous form:→
(i) In CuSO₄ .5H₂O :- Here four water molecules is coordinated with the Cu²⁺ ion on the other hand, fifth water molecule is attached through hydrogen bonding with sulphate group.
So it clear that water may be bonded by hydrogen bonds in some oxygen having anion.
(ii) In any complex ion water molecule is attached with central metal , Example- [CO(H₂O)₆]²⁺Cl⁻
(iii) In Barium chloride dihydrate - Water molecule occupy void space. {The present of void space means in which small particle such as water molecule can be fit }
Hope it Helps.
Water reacts with many salts in the process of crystallization to form it's hydrates.
we know that Hydrates salt having water within their crystal .
For example -
Sodium Sulphate Decahydrate (Na₂SO₄.10 H₂O).
Sodium tetraborate decahydrate ( Na₂B₄O₇.10 H₂O).
we know that mostly water acts as Ligand in hydrates.
Note :- In the coordination complex, Ionic attraction occurs. Also the hydrogen bonds do occurs Between water (H₂O )molecule and its anion.
Now The 3 way in which water may be occurs in anhydrous form:→
(i) In CuSO₄ .5H₂O :- Here four water molecules is coordinated with the Cu²⁺ ion on the other hand, fifth water molecule is attached through hydrogen bonding with sulphate group.
So it clear that water may be bonded by hydrogen bonds in some oxygen having anion.
(ii) In any complex ion water molecule is attached with central metal , Example- [CO(H₂O)₆]²⁺Cl⁻
(iii) In Barium chloride dihydrate - Water molecule occupy void space. {The present of void space means in which small particle such as water molecule can be fit }
Hope it Helps.
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