Question

The density of caf2 is 3.18 the length of the side of the unit cell is

Answer 1

Hello Dear.

Density of CaF₂ = 3.18
Molar Mass of CaF₂ = 78 g/mol.

Using the Formula,
  Density = Mass/Volume.
∴ Volume = Mass/Density
∴ Volume = 78/3.18
∴ Volume = 24.53 cubic units.


Now, Volume of one cube of CaF₂ = (Side)³
∴ Side = $\sqrt[3]{Volume}$
⇒ Side = $\sqrt[3]{24.53}$
∴ Side = 2.905 units.


Hence, the Length of the side of the unit cell of the CaF₂ is 2.905 units.


Hope it helps.

Answer 2

Hope this will help you keep learning