Given :
A compound is found to be made up of 3.21 g Carbon and 1.02 g Oxygen.
To Find :
The percent composition from this data.
Solution :
We know, percentage composition is given by :
![\%mass = (mass)/(mass of compound)* 100](https://img.qammunity.org/2022/formulas/chemistry/high-school/7p7z7ccxu051vlpb7xnouk7tuys2khp1tp.png)
So, percentage composition of Carbon is :
![\%Carbon = (3.21)/(3.21+1.02)* 100\\\\\%Carbon = (3.21)/(4.23)* 100\\\\\%Carbon = 75.89 \%](https://img.qammunity.org/2022/formulas/chemistry/high-school/mr1t3ful3uacyu4mn1tnrr9k3mrbgsrjh9.png)
Since, compound is made up of Carbon and Oxygen.
So, %Oxygen is ( 100 - 75.89 )% = 24.11%
Hence, this is the required solution.