What is the mass percent of carbon in carbon dioxide? [1]
A. 0.034%
B. 27.27%
C. 3.4%
D. 28.7%
Answer:B
What is the mass percent of carbon in carbon dioxide? [1]
A. 0.034% B. 27.27% C. 3.4% D. 28.7%
Explanation: Molecular mass of CO2 = 12 + 2(16) = 12 + 32 = 44 g 44 g of CO2 contains 12 g atoms of carbon. Mass percent of carbon = Mass of carbon in CO Molar mass of CO2 2 × 100 = 12 44 100 × = 27.27%