An element having atomic mass 63.1 g/mol has face centred cubic unit cell with edge length `3.608xx10^(-8)cm`. Calculate the density of unit cell. [Given : `NA=6.022xx1023" atoms/mol"`].

Explanation

Given M = 63.1 g/mol
`Z=4`
`a=3.609xx10^(-8)cm`
`N_(A)=6.023xx10^(23)`
`"Density "=(zxxM)/(a^(3)xxN_(a))`
`=(4xx63.1)/((3.608xx10^(-8))xx6.022xx10^(23))`
`=8.924g//cm^(3)`