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Calculate the approximate number of unit...

Calculate the approximate number of unit cells present in 1 g of gold. When gold crystallizes in the fcc lattice (Au = 197).

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Moles of `Au=(1)/(197)`
Number of atoms of `Au=(6.022xx10^(23))/(197)`
Total number of unit cells `= (6.022xx10^(23))/(197xx4)=7.64xx10^(20)`
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