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Dear Student,
NaCl has an ionic structure. So, the crystal can have only ionic defects.
We know that NaCl has fcc structure.
So , z = 4, M = 58.5 g mol-1,a = 0.5627 nm=5.627 x 10-8 cm , NA = 6.022 x 1023
Now,
But, observed density= 2.164 < d
Since the stoichiometry of the compound is maintained but the observed density is lesser than the calculated density, it has a Schottky type defect.
Now, change in density = 2.18-2.164 = 0.016 g cm-3
So ,
Hope this information will clear your doubts about this topic.
If you have any doubts just ask here on the ask and answer forum and our experts will try to help you out as soon as possible.
Regards
NaCl has an ionic structure. So, the crystal can have only ionic defects.
We know that NaCl has fcc structure.
So , z = 4, M = 58.5 g mol-1,a = 0.5627 nm=5.627 x 10-8 cm , NA = 6.022 x 1023
Now,
But, observed density= 2.164 < d
Since the stoichiometry of the compound is maintained but the observed density is lesser than the calculated density, it has a Schottky type defect.
Now, change in density = 2.18-2.164 = 0.016 g cm-3
So ,
Hope this information will clear your doubts about this topic.
If you have any doubts just ask here on the ask and answer forum and our experts will try to help you out as soon as possible.
Regards