Q. 125.0( 4 Votes )

An element ‘X<

Answer :

Given:

Atomic mass of element(m)=40 gmol-1 length of unit cell(a)=400 pm=4× 10-8 cm; Z=4(Fcc).


Now density is given by the formula



Where Z is the number of an atom in the unit cell


M is the molecular mass


NA is the Avogadro number


V is the volume of the unit cell.


V=a3=(4× 10-8)3 cm =64× 10-24 cm3


Putting the values



Density, D=160/38.5=4.1 g cm-3


Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses
RELATED QUESTIONS :

An element ‘X<Chemistry - Board Papers

Note : In the folChemistry - Exemplar

The correct orderChemistry - Exemplar

The edge lengths Chemistry - Exemplar

If the radius of NCERT - Chemistry Part-I

A cubic solid is NCERT - Chemistry Part-I

Which of the follNCERT - Chemistry Part-I