pHow many unit cells are present in \( 5.0 \mathrm{gm} \) of crystal \( A B \) (formula mass of ...

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pHow many unit cells are present in \( 5.0 \mathrm{gm} \) of crystal \( A B \) (formula mass of \( A B=40 \) ) having rock salt type structure? ( \( N_{A}= \) Avogadros no.)/pp(a) \( N_{A} \)/pp(b) \( \frac{N_{A}}{10} \)/pp(c) \( 4 N_{A} \)/pp(d) none of these/p
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