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Silver forms ccp lattice and x-ray studi...

Silver forms ccp lattice and x-ray studies of its crystals show that the edge length of its unit cell is 408.6 pm. Calculate the density of silver. (Atomic mass of Ag = 107.9 u)

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`d= ZM/(a^(3)N_(A))=(4xx107.9)/(408.6xx6.023xx10^(23))`
 a = edge length
NA = Avogadro No.
M = Molecular mass 
z = no. of atoms.
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