The percent by mass of oxygen in N2O4 is 69,56 %.
The percent by mass of oxygen in Fe2O3 is 30 %.
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 number of molecules is 4,993.10e23.
The mass percent of oxygen in sodium carbonate Na2C03 is 45,283 %.
The mass percent of oxygen in SO2 is 50 %.
The percent composition by mass of C10H14O: carbon-80 % , oxygen-10,67 %, hydrogen-9,33 %.
the answer is 29 percent
it contains nitrogen and oxygen. N2O4
Estriol (C18H24O3) contain 16,644 % oxygen.
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.
Sodium bicarbonate contain 57,137 % oxygen.
The question, "translated" into arithmetic, is, "what is the value of the fraction: [76.3 g/(92.02 g/mole)], and the answer is 0.800 moles, to the justified number of significant digits.
Water is chemically dihydrogen oxide, or H2O. Hydrogen makes up 11.19 percent of water and oxygen is 88.81 percent by mass.
Because the mass of carbon is not the same as that of oxygen.
The molar mass of dinitrogen tetraoxide (N2O4) is 92,011 g/mol.