Answer:
Percentage of oxygen = 73%
Step-by-step explanation:
Given data:
Percentage of C in CO₂ = 27%
Percentage of O₂ in CO₂ = ?
Solution:
The percentage of carbon in carbondioxide is 27% then the percentage of oxygen will be calculated by subtracting the percentage of carbon from 100.
Percentage of oxygen = 100 - percentage of carbon
Percentage of oxygen = 100-27
Percentage of oxygen = 73%