1.

How many unit cells are present in a cube-shaped ideal crystal of \[NaCl\] of mass \[1.00\,g\] [Atomic masses: \[Na=23,\,Cl=35.5]\]       [AIEEE 2003]

A.                 \[2.57\times {{10}^{21}}\] unit cells        
B.                 \[5.14\times {{10}^{21}}\] unit cells
C.                 \[1.28\times {{10}^{21}}\] unit cells        
D.                 \[1.71\times {{10}^{21}}\] unit cells
Answer» B.                 \[5.14\times {{10}^{21}}\] unit cells


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