The molar volume of a certain form of solid lead is 18 cm 3 /mol. Assuming cubic closest-packed structure, determine the following. -The volume of a single cell A) 1.20 × 10⁶ pm³ B) 1.20 × 10⁸ pm³ C) 1.20 × 10⁴ pm³ D) 1.20 × 10² pm³ E) none of these

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The molar volume is given as 18 cm³/mol. In a cubic closest-packed structure, there are 4 atoms per unit cell. The volume of the unit cell can be calculated by dividing the molar volume by Avogadro's number and multiplying by the number of atoms per unit cell. Converting the result to pm³ gives approximately 1.20 × 10⁸ pm³.

The Molar Volume of a Certain Form of Solid Lead