Respuesta :
Answer: 33%
Explanation: Because carbon atoms are only 1/3 of the compound since the other 2 atoms are oxygen. Like H20, Oxygen is one out of the three atoms in the compound.
Answer:
27.29 % of CO2 is carbon.
Explanation:
Not every element has the same molar mass, so they are present in a different %
Step 1: Calculating the molar mass of CO2
⇒CO2 has 1 carbon atom and 2 oxygen atoms
⇒ Molar mass of C= 12.01g/mole
⇒Molar mass of O = 16g/mole
⇒Molar mass of CO2 = 12.01 + 2*16g/mole = 44.01g /mole
Step 2: find the percentage of Carbon
To find the percentage of carbon, we will calculate the ratio Molar mass Carbon / Molar mass CO2
⇒ (12.01 / 44.01) * 100 % = 0.2729 * 100 % = 27.29 %
27.29 % of CO2 is carbon. This means that 72.71 % of CO2 is oxygen ( 100 - 27.29 = 72.71)
