1.

The number of unit cells in 58.5 g of NaCl is nearly

A. \[6\times {{10}^{20}}\]           
B. \[1.5\times {{10}^{23}}\]
C. \[3\times {{10}^{22}}\]
D. \[0.5\times {{10}^{24}}\]
Answer» C. \[3\times {{10}^{22}}\]


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