MHT CET202313 May 2023Morning ShiftChemistrySome Basic Concepts of ChemistryActual
Calculate the number of atoms present in unit cell if an element having molar mass 23 ~g ~mol ⁻¹ and density 0.96 ~g ~cm ⁻³ . [ a ^3 N _ A =48 ~cm ^3 ~mol ⁻¹ ] (A) 1 (B) 2 (C) 4 (D) 6
Options
- A1
- B2
- C4
- D6
Correct answer
B. 2
Step-by-step solution
aligned & Density ( )= nM a ^3 ~N _ A & 0.96= n 23 48 & n = 0.96 48 23 =2.003 aligned Number of atoms present in unit cell =2