unit cell of NaCl contains 4 NaCl molecule. If the density of NaCl crystal is2. 17 g/cm³.Find the edge length of the cube .
Answers
Answered by
0
Answer:
Theoretical density of a crystal, ρ=
N
o
a
3
nM
g/cm
3
Now, For NaCl, n=4 , ρ=2.17 g/cm
3
, M=23+35.5=58.5 g
a
3
=
ρ N
o
nM
=
2.17×6.022×10
23
4×58.5
⇒a
3
=17.9×10
−23
=179×10
−24
⇒a=5.63×10
−8
cm
Explanation:
Similar questions