logo

Ask Questions, Get Answers

 
X
 Search
Want to ask us a question? Click here
Browse Questions
Ad
0 votes

A unit cell of Nacl has four formula units. The edge length of unit cell is 0.564. The density of Nacl is

$(a)\;2.16g/cm^3\qquad(b)\;4.32g/cm^3\qquad(c)\;0.216g/cm^3\qquad(d)\;21.6g/cm^3$

Can you answer this question?
 
 

1 Answer

0 votes
Density = $\large\frac{n\times at.wt}{N_A \times a^3}$
$=\large\frac{4\times58.5}{6.023\times10^{23}\times(5.64\times10^{-8})^3}$
$ = 2.16 g/cm^3$
Hence answer is (a)
answered Feb 25, 2014 by sharmaaparna1
 

Related questions

Ask Question
student study plans
x
JEE MAIN, CBSE, NEET Mobile and Tablet App
The ultimate mobile app to help you crack your examinations
Get the Android App
...