calculate the percentage composition in NO2
Figure the mol mass of NO2 (atomic mass N + 2*atomic masss O)
percent N= atomicmassN/molmassNO2 * 100
percent O= 2*atomicmassO/molmassNO2 *100
To calculate the percentage composition in NO2, you need to follow these steps:
1. Find the molar mass of NO2:
- The atomic mass of nitrogen (N) is 14.01 g/mol.
- The atomic mass of oxygen (O) is 16.00 g/mol.
- Multiply the atomic mass of oxygen by 2 because there are two oxygen atoms in NO2.
- Sum the atomic masses of nitrogen and oxygen: 14.01 g/mol + (2 * 16.00 g/mol) = 46.01 g/mol.
- Therefore, the molar mass of NO2 is 46.01 g/mol.
2. Calculate the percentage of nitrogen:
- Divide the atomic mass of nitrogen (14.01 g/mol) by the molar mass of NO2 (46.01 g/mol).
- Multiply the result by 100 to convert it to a percentage.
- percent N = (14.01 g/mol / 46.01 g/mol) * 100 = 30.43%.
3. Calculate the percentage of oxygen:
- Multiply the atomic mass of oxygen (16.00 g/mol) by 2 because there are two oxygen atoms in NO2.
- Divide the result by the molar mass of NO2 (46.01 g/mol).
- Multiply the result by 100 to convert it to a percentage.
- percent O = (2 * 16.00 g/mol / 46.01 g/mol) * 100 = 69.57%.
Therefore, the percentage composition in NO2 is approximately 30.43% nitrogen and 69.57% oxygen.