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For H2 (natural occurring element Hydrogen) it is 2*1.00794 a.m.u = 2.01588 a.m.e

This means that 1.00000 mole H2 has a mass of 2.01588 grams

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13y ago
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11y ago

The relative molecular mass of hydrogen gas is 2.

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14y ago

Molecular mass of heavy hydrogen(deuterium) is 4 a.m.u. it's Atomic Mass = 2 a.m.u.

Alternatively it can be stated that 1 mole of molecular hydrogen weighs 4 grams.

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Q: What is the molecular mass of hydrogen?
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Molecular mass equals 2vapour density?

vapor density =density of gas/density of hydrogen gas=mass of a certain vol. of gas/mass of same vol. of hydrogen gas=mass of n molecules of gas/mass of n molecules of hydrogen gas=mass of 1 molecule of gas/mass of 1 molecule of hydrogen gas=molecular mass of gas/molecular mass of hydrogen gas=molecular mass/22 x vapor density=molecular mass


What is the gram molecular mass of hydrogen?

The gram molecular mass of H2 is 2g.


What is the method of working out the molecular mass of hydrogen?

On the periodic table it says that one mole of hydrogen atoms weighs 1.008 grams. However, Hydrogen is a diatomic molecule (it is composed of two hydrogen atoms in its molecular state). Hence, the molecular mass of hydrogen is 1.008 multiplied by 2 = 2.016g this is the mass of one mole of hydrogen. Hope this helps!


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.


Calculate the molecular mass of hydrogen bromine?

The atomic mass of hydrogen is 1u. Atomic mass of bromine is 80u. Therefore, the molar mass of hydrogen bromide is 1+80=81u.


The molecular mass of a compound is 63.008 amu contains Hydrogen and Oxygen and Nitrogen elements It molecular formula is?

HNO3


What is the formula mass and chemical formula for sodium hydrogen carbonate?

The chemical formula of sodium hydrogen carbonate is NH4HCO3.The molecular mass is 84,0066 g.


What is the molecular mass of hydrogen sulphide H2S?

34.08 g mol-1


Hydrogen or carbon dioxide is smaller?

Hydrogen has by far the smaller molecular mass (and atomic number) making it the smallest element


The empirical formula for cumene a compound containing only carbon and hydrogen is C3H4. Its Molecular mass is 120 g. What is the molecular formula for cumene?

This molecular formula is C9H12.


A compound formed of 0.059 mol hydrogen and 0.94 mol oxygen has a molecular mass of 34.0 gmole What is the molecular formula of this compound?

h2o2


A molecule of water is composed of two atoms of hydrogen and one atom of oxygen if the atomic mass number of hydrogen is 1 and the molecular mass of water is 18 the atomic mass of oxygen must be?

16