Problem: Clausthalite is a mineral composed of lead selenide (PbSe). The mineral adopts a NaCl-type structure. The density of PbSe at 25 oC is 8.27 g/cm3.Calculate the length of an edge (a) of the PbSe unit cell.

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Clausthalite is a mineral composed of lead selenide (PbSe). The mineral adopts a NaCl-type structure. The density of PbSe at 25 oC is 8.27 g/cm3.

Calculate the length of an edge (a) of the PbSe unit cell.

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