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

Explanation

`"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"`