1.

Sodium crystallizes in a face centred cubic lattice. The approximate number of unit cells in 5.0 g of sodium is (Atomic mass of sodium = 23 amu)

Answer»

`32.7 × 10^(22)`
`3.27 X 10^(22)`
`6.54 × 10^(22)`
`65.4 × 10^(22)`

ANSWER :B


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