MHT CET202312 May 2023Evening ShiftChemistrySolid StateActual
Calculate the density of an element having molar mass 27 ~g ~mol ⁻¹ that forms fcc unit cell. [ a ^3 N _ A =38.5 ~cm ^3 ~mol ⁻¹ ]
Options
- A2.8 ~g ~cm ⁻³
- B2.1 ~g ~cm ⁻³
- C3.5 ~g ~cm ⁻³
- D4.1 ~g ~cm ⁻³
Correct answer
A. 2.8 ~g ~cm ⁻³
Step-by-step solution
Density, = M n a^3 N_A aligned & = 27 ~g ~mol ⁻¹ 4 atom 38.5 ~cm ^3 ~mol ⁻¹ & =2.8 ~g ~cm ⁻³ aligned