how do u calulate percentage composition of NO2
[mass N/mass NO2] x 100 = %Nitrogen
[mass O2/mass NO2] x 100 =%oxygen
To calculate the percentage composition of NO2, you need to determine the mass of nitrogen (N) and oxygen (O) in relation to the total mass of NO2.
Here's how you can do it step by step:
1. Determine the molar mass of NO2:
- Nitrogen (N) has an atomic mass of approximately 14.01 g/mol.
- Oxygen (O) has an atomic mass of approximately 16.00 g/mol.
- NO2 consists of one nitrogen atom and two oxygen atoms, so you'll add the atomic masses together:
molar mass NO2 = (1 * molar mass N) + (2 * molar mass O)
2. Calculate the mass of nitrogen (N):
- Divide the molar mass of nitrogen by the molar mass of NO2:
mass N = (1 * molar mass N) / molar mass NO2
3. Calculate the mass of oxygen (O):
- Divide the molar mass of oxygen by the molar mass of NO2:
mass O = (2 * molar mass O) / molar mass NO2
4. Calculate the percentage composition:
- Multiply the mass of nitrogen by 100 and divide it by the total mass of NO2:
% Nitrogen = (mass N / total mass NO2) * 100
- Multiply the mass of oxygen by 100 and divide it by the total mass of NO2:
% Oxygen = (mass O / total mass NO2) * 100
By following these steps, you can calculate the percentage composition of nitrogen and oxygen in NO2.