the answer is 29 percent
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.
Approximately 71% of Earth's surface is covered by water, but only about 0.02% of Earth's total mass is water. This is because water is less dense than the rocks that make up the Earth's interior.
Muscle tissue makes up around 40-50% of a person's body mass. The percentage can vary based on factors like age, gender, and fitness level.
Oxygen is the element that makes up the greatest percentage of weight in the body, comprising about 65% of the body's mass.
Silver sulfide is typically composed of around 87.1% silver and 12.9% sulfur by mass.
Approximately 50% of a tree's dry weight is composed of carbon. This carbon is extracted from carbon dioxide in the air during photosynthesis, and is used to build the tree's structure.
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
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.
in every sample of carbon monoxide ,the mass ratio of carbon to oxygen is 3:4
No
The mass percent of oxygen in SO2 is 50 %.
Atomic percent is based on the number of atoms in a sample. So if the sample has x number of oxygen atoms and x number of iron atoms it would report 50% oxygen and 50% iron (atomic percent). Weight percent is based on the mass of the elements detected. So if we used the above example and reported the results as weight percent we would get 22.3% oxygen and 77.7% iron. Weight percent takes into consideration the mass or atomic weight of the elements and not just the number of atoms. Most people use weight percent although for chemistry atomic percent may be more useful.
Estriol (C18H24O3) contain 16,644 % oxygen.
60%
Mass % of CHCl3 = 15x10-4 %
First take the mercury oxide and heat it so that it decomposes completely. This will drive off the oxygen gas and leave you with elemental mercury. Record the exact mass of the mercury that you have left at the end of the reaction. Divide this mass of mercury by the original mass of your mercury oxide sample and multiply by 100. This will be the percent mercury by mass in your original sample.
Oxygen atoms weigh more than Hydrogen atoms.