what is the % composition by mass of co2
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 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%.
shorten it
To find the percent composition by mass of CO2, we need to calculate the mass of carbon and oxygen in one molecule of CO2 and then express that as a percentage.
The molecular formula of carbon dioxide (CO2) tells us that one molecule of CO2 contains one carbon atom (C) and two oxygen atoms (O). The atomic masses of carbon and oxygen are approximately 12 and 16 grams per mole, respectively.
To calculate the mass of carbon in one molecule of CO2:
Mass of carbon = 1 * atomic mass of carbon = 1 * 12 g/mol = 12 g
To calculate the mass of oxygen in one molecule of CO2:
Mass of oxygen = 2 * atomic mass of oxygen = 2 * 16 g/mol = 32 g
Next, we add the masses of carbon and oxygen together to find the total mass of CO2:
Total mass of CO2 = mass of carbon + mass of oxygen = 12 g + 32 g = 44 g
Finally, we can find the percent composition of carbon and oxygen in CO2:
Percent composition of carbon = (mass of carbon / total mass of CO2) * 100%
= (12 g / 44 g) * 100%
≈ 27.27%
Percent composition of oxygen = (mass of oxygen / total mass of CO2) * 100%
= (32 g / 44 g) * 100%
≈ 72.73%
Therefore, the percent composition by mass of CO2 is approximately:
Carbon: 27.27%
Oxygen: 72.73%
To calculate the percent composition by mass of CO2 (carbon dioxide), we need to determine the mass of each element (carbon and oxygen) in one molecule of CO2 and then express it as a percentage of the total mass of CO2.
To calculate the mass of carbon in one molecule of CO2:
- The formula of carbon dioxide (CO2) tells us that one molecule contains one carbon atom.
- The atomic mass of carbon is approximately 12.01 grams/mole.
The mass of carbon in CO2 = 1 * 12.01 grams/mole = 12.01 grams/mole
To calculate the mass of oxygen in one molecule of CO2:
- The formula of carbon dioxide (CO2) tells us that one molecule contains two oxygen atoms.
- The atomic mass of oxygen is approximately 16.00 grams/mole.
The mass of oxygen in CO2 = 2 * 16.00 grams/mole = 32.00 grams/mole
The total mass of CO2 is the sum of the masses of carbon and oxygen:
Total mass of CO2 = Mass of carbon + Mass of oxygen = 12.01 grams/mole + 32.00 grams/mole = 44.01 grams/mole
To calculate the percent composition by mass of carbon in CO2:
Percent composition of carbon = (Mass of carbon / Total mass of CO2) * 100
= (12.01 grams/mole / 44.01 grams/mole) * 100
≈ 27.27%
To calculate the percent composition by mass of oxygen in CO2:
Percent composition of oxygen = (Mass of oxygen / Total mass of CO2) * 100
= (32.00 grams/mole / 44.01 grams/mole) * 100
≈ 72.73%
Therefore, the percent composition by mass of CO2 is approximately 27.27% carbon and 72.73% oxygen.