The % composition by mass of CO2 (carbon dioxide) is:
- Carbon (C) = 27.27%
- Oxygen (O) = 72.73%
This means that in one molecule of CO2, 27.27% of its mass is carbon and 72.73% is oxygen.
what is the % composition by mass of co2
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what is the % composition of oxygen in k2so4
The molecular formula of potassium sulfate (K2SO4) contains two potassium atoms (K), one sulfur atom (S), and four oxygen atoms (O).
The molar mass of K2SO4 is 174.259 g/mol. The molar mass of oxygen is 15.999 g/mol.
To find the % composition of oxygen in K2SO4, we first need to calculate the total mass of oxygen in the compound.
1 molecule of K2SO4 contains 4 atoms of oxygen, so the mass of oxygen in 1 mole of K2SO4 is:
4 x 15.999 g/mol = 63.996 g/mol
Now we can calculate the % composition of oxygen as:
% composition of oxygen = (mass of oxygen / total mass of K2SO4) x 100%
% composition of oxygen = (63.996 g/mol / 174.259 g/mol) x 100%
% composition of oxygen ≈ 36.72%
Therefore, the % composition of oxygen in K2SO4 is approximately 36.72%.
The molar mass of K2SO4 is 174.259 g/mol. The molar mass of oxygen is 15.999 g/mol.
To find the % composition of oxygen in K2SO4, we first need to calculate the total mass of oxygen in the compound.
1 molecule of K2SO4 contains 4 atoms of oxygen, so the mass of oxygen in 1 mole of K2SO4 is:
4 x 15.999 g/mol = 63.996 g/mol
Now we can calculate the % composition of oxygen as:
% composition of oxygen = (mass of oxygen / total mass of K2SO4) x 100%
% composition of oxygen = (63.996 g/mol / 174.259 g/mol) x 100%
% composition of oxygen ≈ 36.72%
Therefore, the % composition of oxygen in K2SO4 is approximately 36.72%.
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