MHT CET Chemistry question
Not in JEE Main or NEET syllabus
A metallic element crystallizes in simple cubic lattice. Each edge length of the unit cell is 3 Å. The density of the element is 8 g/cc. Number of unit cells in 108 g of the metal is (Molar mass of the metal = 108 g/mol)
Answer: (C)
Solution
Volume of 108 g = 108/8 = 13.5 cm³ and the volume of one unit cell = (3 × cm)³ = 2.7 × cm³, so number of unit
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