What is the Formula mass of NaCl ? * explain
1 point
58.5 g/mol
58.5 u
68 g/mol
80 u
Answers
Answered by
4
Answer:
As we know, for the given cubic structure, we have
2r
+
+2r
−
=a
a=2×2.8
A
˚
As we know,
Density =
VN
o
nM
m, where n is the number of atoms per unit cell.
Here, n=4
2.17=
5.6×10
−10
)
3
(N
o
)
4×58.5
⟹N
o
=6.05×10
23
atoms mol
−1
Explanation:
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