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A 100^(@), copper (Cu) has FCC unit cell...

A `100^(@)`, copper (Cu) has FCC unit cell structure with cell edge length of x A. What is the approximate density of Cu (in g `cm^(-3)` at this temperature?
[Atomic Mass of Cu = 63.55 u]

A

`(105)/(x^(3))`

B

`(422)/(x^(3))`

C

`(205)/(x^(3))`

D

`(211)/(x^(3))`

Text Solution

Verified by Experts

d ` =(Z xx M)/(N_(A) xx a^(3)) ` foe fcc z = 4
`d = ( 4 xx 63.55)/(6.023 xx 10^(23) xx x^(3) xx (10^(-8))^(3)) rArr d = (422)/(x^(3)) g cm^(-3)`
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