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What is the mass percent of carbon in carbon dioxide?

(i) 0.034%

(ii) 27.27%

(iii) 3.4%

(iv) 28.7%

Answers (1)

The answer is the option (ii) 27.27%

Explanation:

Molar mass of CO_{2} = (1\times 12) + (2 \times 16) = 44 g

Therefore, 1 mole g of CO_{2} contains 1 mole of carbon

44 g of CO_{2} therefore contains 12 g of carbon.

\mathrm{\% \ \textup{of C in }\mathrm{CO}_2=\frac{12}{44} \times 100=27.27 \%}

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