Calculate the number of unit cells in $1 \ cm^3$ volume of metal if the volume of one unit cell is $3.448 \times 10^{-23} \ cm^3$.

  • A
    $2.5 \times 10^{22}$
  • B
    $3.2 \times 10^{22}$
  • C
    $2.9 \times 10^{22}$
  • D
    $3.7 \times 10^{22}$

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