The percentage of oxygen (in mass) is 29,776 %.
The chemical composition of ethanol is:- carbon: 52,12 %- oxygen: 34,74 %- hydrogen: 13,13 %
For the chemical formula C18H22O2 the percentage composition is: H: 8,8811 % C: 79,371 % O: 11,7478 %
The chemical formula of silicon dioxide (quartz) is SiO2; The percentage of oxygen is 53,33 % and the percentage of silicon is 46,56 %.
The percentage of oxygen in sucrose is 51,41549 %.
Oxygen.
oxygen percentage in air is 20%
Dinitrogen Pentoxide is made up of nitrogen and oxygen. The percentage of composition of each of these elements is: 25.936% nitrogen and 74.064% oxygen.
Oxygen is approx. 45 % in the lunar crust.
The chemical composition of ethanol is:- carbon: 52,12 %- oxygen: 34,74 %- hydrogen: 13,13 %
The percentage composition of the phosphoric acid is: H: 3,0857 % O: 65,307 % P: 31,6074 %
The molecular mass of CO is 28. The carbon percentage by mass is ~43%. Hence the oxygen percentage by mass is ~57%.
The percentage composition of amonium sulfate is:- Nitrogen: 21,21 %- Hydrogen: 6,06 %- Sulfur: 24,24 %- Oxygen: 48,48 %
Ethanol is composed of about 52.14% oxygen, 13.16% hydrogen, and 34.70% carbon by mass.
Na2C2O4 Na=34.43% C=17.925% O=47.76%
To find the percent composition of oxygen in a compound, divide the molar mass of the oxygen in the compound by the molar mass of the entire compound, then multiply by 100 to get the percentage. Repeat this calculation for each compound listed.
Silicon dioxide is composed of 46.7% silicon and 53.3% oxygen by mass.
For the chemical formula C18H22O2 the percentage composition is: H: 8,8811 % C: 79,371 % O: 11,7478 %