1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

# Iron crystallizes as face centred cube. Its density is 2.8 g/cm3. If the volume of the unit cell is 56.38x10-24 cm3, calculate the mass of one atom.

A

39.46 x 10-24g

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B

49.46 x 10-24g

No worries! We‘ve got your back. Try BYJU‘S free classes today!
C

2.946 x 10-24g

No worries! We‘ve got your back. Try BYJU‘S free classes today!
D

3.946 x 10-24g

No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

## The correct option is A 39.46 x 10-24g Density of the unit cell = 2.8 g/cm3 and volume of unit cell = 56.38 x 10-24 cm3 Mass of the unit cell = 2.8 g/cm3 x 56.38 x 10-24 cm3 In face centred unit cell there are 4 atoms. So mass of one atom = 2.8 g/cm3 x 56.38 x 10-24 cm3 /4 = 39.46 x 10-24g

Suggest Corrections
0
Join BYJU'S Learning Program
Related Videos
Zeff
CHEMISTRY
Watch in App
Explore more
Join BYJU'S Learning Program