11.19%
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 %.
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.
The percent composition of C5H12 is: carbon (C) = 83.78%, hydrogen (H) = 16.22%.
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.
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.
In terms of the number of atoms it is 50%. In terms of mass, it is 5.88%.
99 percent of the human body contains carbon, oxygen and hydrogen atoms. The composition of hydrogen in human body is 9.5 percent.
(NH4)2S % Nitrogen = 41.2 % % Hydrogen = 11.8 % % Sulphur = 47 %
Jupiter's atmosphere is 90 percent hydrogen and 10 percent helium. There are also some small amounts of sulfur, ammonia, water vapor and methane.
The percent composition by element of Ca(C2H3O2)2 is calcium 25.339%, hydrogen 3.824%, carbon 30.375%, and oxygen 40.462%.
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.
11.19%