Calculate number of atoms per unit cell of an element having molar mass 92.0 ~g ~mol ⁻¹ and density 8.6 ~g ~cm ⁻³ forming cubic unit cell structure. [ a ^3 N _ A =21.5 ~cm ^3 ~mol ⁻¹ ]

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Correct answer: B. 2

aligned & Density ( )= M n a^3 N_A & n = a ^3 N _A M = 8.6 ~g ~cm ⁻³ 21.5 ~cm ^3 ~mol ⁻¹ 92 ~g ~mol ⁻¹ =2 aligned

Calculate number of atoms per unit cell of an element having molar mass 92.0 ~g ~mol ⁻¹ and density 8.6 ~g ~cm ⁻³ forming cubic unit cell structure. [ a ^3 N _ A =21.5 ~cm ^3 ~mol ⁻¹ ]

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