What is the mass per cent of carbon in carbon dioxide ?

1.	What is the mass per cent of carbon in carbon dioxide ?
Answer» `0.034%` `27.27%` `3.4%` `28.7%` Solution :Molecular mass of `CO_(2) = 1 xx 12 + 2 xx 16= 44g` 1 g molecule of `CO_(2)` contains 1 g atoms of CARBON `:. ` 44 g of `CO_(2)` contains `C= 12g` atoms of carbon `:. ` % of C in `CO_(2) = (12)/(44) xx100 = 27.27%`

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