1.

What is the mass percent of carbon in carbon dioxide?

Answer»

`0.034%`
`27.27%`
`3.4%`
`28.7%`

SOLUTION :Molecular mass of `CO_(2)=12+2xx16=44`
Mass of C in `CO_(2)=12g`
`:.%C=12/44xx100=27.27%`


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