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What is the relative mass formula of hydrogen gas?
The molecular mass of hydrogen gas is 2. A molecule of hydrogen gas contains two hydrogen atoms covalently bonded. Since each hydrogen atom has an atomic mass of 1 (as we can derive from the Periodic Table of Elements), the molecular mass of hydrogen gas as a molecule is 1 + 1 = 2.
What is the mass percent of hydrogen in ammonium phosphate?
The percentage of H in ammonium phosphate is the mass of H divided by the mass of the entire compound.
What is the percentage of hydrogen in hydrogen Bromide?
It all depends on what you're looking for. If you mean ratio of atoms, It is a one:one ratio, so 50% each If you mean mass, 1.0125% of the mass of one molecule is hydrogen and the other 98.9875% is bromine.
How much hydrogen is in the human body?
Most of the hydrogen in our body floats around in the form of water. The human body is about 60% water and hydrogen only accounts for 11% of that water mass. Thus, roughly 6.6% of a typical human's body mass is hydrogen.
What is the percent composition of cesium in CsOH?
The given formula shows four atoms in one formula unit. Therefore, the atomic percentages are 25 % each of iron and oxygen and 50 % of hydrogen. The mass percentages may be calculated from the atomic percentages combined with the gram atomic mass of each element. These values are 1.00794 for hydrogen, 15.9994 for oxygen, and 55.847 for iron; this yields a gram formula mass of 73.857, to the justified number of significant digits. The mass percentage of iron is therefore 100(55.847/73.857) or 75.615 %; the mass percentage of oxygen is 100(15.9994/73.857) or 21.663 %; and the mass percentage of hydrogen is (100)(2.00000)(1.00794)/73.857) or 2.7294 %.
What is the percentage by mass of hydrogen in ammonia?
Mass of ammonia is 17. Mass of Hydrogen in it is 3. So the percentage of hydrogen by mass is 17.64%
Why is hydrogen on the top of modern periodic table?
The periodic table is arranged by atomic mass. Hydrogen is the lightest element. Its atomic mass is one.
Which isotopes of hydrogen has more mass percentage?
In naturally occurring hydrogen, most of the mass is that of the hydrogen-1 isotope.
What percentage of water is hydrogen?
By mole, water is 66.666r% hydrogen but by mass it is about 11.9% hydrogen.
How many molecule does table sugar have?
not enough information to answer; it depends on the mass of table sugar present.
What is the percentage of hydrogen by mass in nicotine C10H14N2?
21.2 %
How the atomic mass of hydrogen can be find out?
Look in a periodic table.
Hydrogen atomic mass?
Hydrogen's atomic mass is 1.00794 amu. Hydrogen is a chemical element represented by the symbol H.
What is the percentage by mass of sodium (Na) in a formula unit of sodium hydrogen carbonate NaHCO3?
The percentage by mass of sodium (Na) in a formula unit of sodium hydrogen carbonate (NaHCO3) is 27,38 %.
Which element has the lowest mass on the periodic table?
The atom that has the lowest mass is hydrogen. So assuming the same numbers of atoms in each element, hydrogen would be the element with the lowest mass.
What is the mass percentage of N in NH3?
Nitrogen has an average atomic mass of about 14 while hydrogen has an average atomic mass of about 1, so the total molecular mass of NH3 is about 17. From this we find that the mass percentage of N in NH3 is about 14/17 = 82%. To get more precise numbers, look up the exact atomic masses from a periodic table.
What element in the periodic table has a molar mass equal to one?
hydrogen
