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81. How many unit cells can be made out of an 18-carat pure 197 g sample of gold? (Gold has fcc structure, Atomic mass of gold =197u ,NA=Avogadro number) 1)3NA÷16 2)4NA 3)NA 4)NA÷

Answer» 81. How many unit cells can be made out of an 18-carat pure 197 g sample of gold? (Gold has fcc structure, Atomic mass of gold =197u ,NA=Avogadro number) 1)3NA÷16 2)4NA 3)NA 4)NA÷


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