Calculate the \( \% \) composition of Carbon in \( C O_{2} . \) Molar mass is 44.01
\( 40 \% \)
67\%
30\%
27\%
Correct answer: \( 40 \% \)
Solution
In one mole of CO2, carbon contributes 12.01 g out of the total 44.01 g. Dividing 12.01 by 44.01 and multiplying by 100 gives about 27.3%, so the listed correct answer appears inconsistent with the given molar mass.