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Home  >>  AIMS  >>  Class12  >>  Chemistry  >>  Solid State
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Potassium crystallizes in a body centred cubic lattice. What is the approximate number of unit cells in 4.0 g of potassium? Atomic mass of potassium = 39.

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$3.09\times 10^{22}$
Hence (B) is the correct answer.
answered May 29, 2014 by sreemathi.v

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