Q - Copper Caystalizers in fcc lattice having
edge, length 408 Pm and molar mass 63.5glmol.
Calculate its density.
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edge length = 408 pm
= 408 × 10 ^(-10) cm
Molar mass = 63.5 g / mol
no. of atoms = 4
NA = 6.022 × 10 ^(23)
Density = n × M / NA × a ^3
= ( 4 × 63.5 ) / ( 6.022 × 10 ^23×408×10^(-10)
= 6.21 g/cm^3
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