1.

Calculate the number of moles in 24.092xx10^(22) molecules of water.

Answer»

SOLUTION :`"NUMBER of moles"=("No. of MOLECULES")/("Avogadro number")`
`=(24.092xx10^(2))/(6.023xx10^(23))`
`=4xx10^(22)xx10^(-23)=4xx10^(-1)`
`="0.4 mole."`


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