Calculate the molar mass of a metal having a density of $22.24 \ g \ cm^{-3}$,which crystallizes to form a unit cell containing $4$ particles. Given $a^3 = 5.6 \times 10^{-23} \ cm^3$.
- A$280.2 \ g \ mol^{-1}$
- B$140 \ g \ mol^{-1}$
- C$210.6 \ g \ mol^{-1}$
- D$187.4 \ g \ mol^{-1}$
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