0
The formula for water is H2O: Molar mass = 18.02 g / mol H2O
In one mole of H2O there are 2 mol H and 1 mol O:
2 mol H1.010 g H = 2.020 g H1 mol H
1 mol O16.00 g O = 16.00 g O1 mol O
The percentage of each element is calculated from the quantities in 1 mole as:
% element = g element 100g H2O
% H...=...2.020 g H... 100......=...11.21 % H18.02g H2O
% O...=...16.00 g O... 100......=...88.79 % O18.02g H2O
Note: 11.21 + 88.79 = 100.00
Wiki User
∙ 12y ago
Wiki User
∙ 9y agoWater is chemically dihydrogen oxide, or H2O. Hydrogen makes up 11.19 percent of water and oxygen is 88.81 percent by mass.
Wiki User
∙ 13y agoPercent composition
Wiki User
∙ 14y ago11.19%
Wiki User
∙ 10y agohello
Wiki User
∙ 12y ago11.1%
Add your answer:
Earn +20 pts
What is the precent composition of hydrogen in water?
The formula of water is H2O. The gram atomic mass of hydrogen is 1.008 and the gram atomic mass of oxygen is 15.999. Therefore, the mass percent composition of hydrogen in water is 100{(2)(1.008)/[(2)(1.008) + 15.999] or 11.19 %.The percent composition of hydrogen in water is: 11,19 %.
What is the percent composition of the gas on earth?
The atmospheric gas of Earth consists of about 78 percent nitrogen, 21 percent oxygen, 0.9 percent argon, and 0.03 percent carbon dioxide, with hydrogen, water, ozone, neon, helium, krypton, xenon, and traces of other elements making up the remaining 0.07 percent.
What is the percent composition of Li in LiOH?
The percent composition of lithium in LiOH is: 29,21 %.
What is the percent composition of ammonium carbonate?
Can you be more specific? Percent composition is usually the percent of an element in a compound.
What is the percent composition of each element found in ammonium sulfide?
The formula unit for ammonium sulfide is (NH3)2S. There are 2 nitrogen atoms, 6 hydrogen atoms, and 1 sulfur atom per formula unit. Its molar mass is 66.12g/mol. Mass of Nitrogen = 14.007g/mol x 2 = 28.014g/mol Percent Composition of Nitrogen = (28.014g/mol)/(66.12g/mol) x 100 = 42.37% Mass of Hydrogen = 1.008g/mol x 6 = 6.048g/mol Percent Composition of Hydrogen = (6.048g/mol)/(66.12g/mol) x 100 = 9.147% Mass of Sulfur = 32.06g/mol Percent Composition of Sulfur = (32.06g/mol)/(66.12g/mol) x 100 = 48.49% 42.37% + 9.147% + 48.49% = 100.00%
what percent composition of hydrogen in water is %?
11.19%
What is the precent composition of hydrogen in water?
The formula of water is H2O. The gram atomic mass of hydrogen is 1.008 and the gram atomic mass of oxygen is 15.999. Therefore, the mass percent composition of hydrogen in water is 100{(2)(1.008)/[(2)(1.008) + 15.999] or 11.19 %.The percent composition of hydrogen in water is: 11,19 %.
What is Jupiter's composition in percent?
hydrogen and helium
What is Neptuns composition?
The composition of Neptune's atmosphere is 80 percent hydrogen, 19 percent helium and 1 percent methane. In addition, there are trace amounts of ethane and hydrogen deuteride.
What is Jupiter's composition of atmosphere?
Jupiter's atmosphere is 90 percent hydrogen and 10 percent helium. There are also some small amounts of sulfur, ammonia, water vapor and methane.
What is the percent composition of hydrogen in hydrogen peroxide?
In terms of the number of atoms it is 50%. In terms of mass, it is 5.88%.
What is the percent composition of acetate?
The percent composition by element of Ca(C2H3O2)2 is calcium 25.339%, hydrogen 3.824%, carbon 30.375%, and oxygen 40.462%.
Evidence that supports the law of constant composition?
A piece of evidence that is commonly used to prove the law of constant composition is that any sample of water is 88. 71 percent oxygen and 11. 19 percent hydrogen. It was formulated by Joseph Proust.
How much hydrogen does the human body contain?
99 percent of the human body contains carbon, oxygen and hydrogen atoms. The composition of hydrogen in human body is 9.5 percent.
What is the composition of water in percent?
11.19%
What is the percent composition of hydrogen peroxide solution when used as a topical antiseptic?
3 %
What is the molecular composition of water?
H20 is the molecular composition of water. Two hydrogen atoms and one oxygen atom. The hydrogen atoms are pulled to the oxygen atom through forces called hydrogen bonding.
