ICSE Class 9 Answered
Does anhydrous crystals of sodium chloride contain water?
How are crystals containing water of crystallization different from anhydrous crystals of sodium chloride ?
Asked by Kanwaranita10 | 09 May, 2018, 07:16: PM
Expert Answer
Anhydrous substance does not contain water molecule. These obtained from hydrated salts by carefully removing water of crystallization from them.
NaCl is an anhydrous salt but if some impurity like salts of group II is present, they absorb moisture from the air because they are hygroscopic substances that's why NaCl looks moisty. But its an anhydrous salt.
Let us take an example so that you will clear your concept about this,
CuSO4.5H2O + heat → CuSO4 + 5H2O
Blue White
(Salt with water (anhydrous salt)
of crystallization)
Answered by Ramandeep | 10 May, 2018, 09:51: AM
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