1.

Calculate the number of moles in 12.046xx10^(22) atoms of copper.

Answer»

SOLUTION :`"No. of moles of ATOMS"=("No. of atoms")/("Avogadro number")`
`=(12.046xx10^(22))/(6.023xx10^(23))=2XX10^(-1)`
`=0.2" mole."`


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