19.37 g/mol
To find the percent composition of oxygen in Na2O, find the total molar mass of the compound. Then, divide the molar mass of oxygen by the molar mass of the compound, and multiply by 100% to get the percent oxygen.
Oxygen atoms weigh more than Hydrogen atoms.
Approx 32.8%.
Approx 26.8%
Sodium oxide contain 25,8 % oxygen.
19.37
The percent by mass of oxygen in N2O4 is 69,56 %.
To find the percent composition of oxygen in Na2O, find the total molar mass of the compound. Then, divide the molar mass of oxygen by the molar mass of the compound, and multiply by 100% to get the percent oxygen.
The mass percent of oxygen in SO2 is 50 %.
To determine the percentage of oxygen in FeCr2O4, you would first calculate the molar mass of the compound (iron(II) chromite) using the atomic masses of each element (Fe = 55.85 g/mol, Cr = 51.996 g/mol, O = 16 g/mol). Then, calculate the molar mass percentages of each element within the compound, and finally, determine the percentage of oxygen by mass in the compound.
Estriol (C18H24O3) contain 16,644 % oxygen.
60%
The mass of the elements that are not oxygen equals 194.8g. The mass of oxygen is 230g - 194.8g = 35.2g of oxygen. Mass percent of oxygen = 35.2g O/230g x 100 = 15% O
Oxygen atoms weigh more than Hydrogen atoms.
42.3
Because the mass of carbon is not the same as that of oxygen.
3 elements: phlopstyne, oxygen and silicon