1.

Calculate the number of molecules of 11 g of CO_(2).

Answer»

Solution :`"Gram molecular mass of "CO_(2)=44G`
`"NUMBER of molecules"=("Avogadro number"XX"given mass")/("Gram molecular mass")`
`=(6.023xx10^(23)xx11)/(44)`
`=1.51xx10^(23)CO_(2)" molecules"`


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