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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
What else can I help you with?
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 two gases make up 99 percent of Jupiter's atmosphere?
Hydrogen and helium make up 99 percent of Jupiter's atmosphere. These two gases are the most abundant elements in the planet's composition.
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%
The percent of higergen in water?
The exact percentage of hydrogen in water is 11.11%, as water molecule (H2O) contains two hydrogen atoms and one oxygen atom.
What is acetone's percent composition by mass?
%C= 62.0% %H2= 10.4% %O2= 27.5% To find these, you divide the molar mass of the specific element in the compound divided by the molar mass of the entire compound.
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?
Jupiter's composition is primarily hydrogen (about 75%) and helium (about 24%). The rest of its composition consists of trace elements such as methane, ammonia, water, and other compounds.
What is the percent composition of c5h12?
The percent composition of C5H12 is: carbon (C) = 83.78%, hydrogen (H) = 16.22%.
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.
Percent composition of cocaine?
Cocaine is composed of carbon, hydrogen, and nitrogen. The approximate percent composition of cocaine is around 71.04% carbon, 8.64% hydrogen, and 20.32% nitrogen.
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%.
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 percent composition of the elements found in NH42S?
(NH4)2S % Nitrogen = 41.2 % % Hydrogen = 11.8 % % Sulphur = 47 %
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 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.
