H2 - Hydrogen Molar Mass

Molecular Weight of Hydrogen - H2

2.0159 g/mol

Composition of Hydrogen - H2

Element Symbol Atomic Mass # of Atoms Mass Percent
Hydrogen H 2.0159 g/mol 2 100%
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
1
2
3
4
5
6 *
7 **
Lanthanoids *
Actinoids **

Instructions

This program determines the molecular mass of a substance. Enter the molecular formula of the substance. It will calculate the total mass along with the elemental composition and mass of each element in the compound.

  • Use uppercase for the first character in the element and lowercase for the second character. Examples: Fe, Au, Co, Br, C, O, N, F.
  • You can use parenthesis () or brackets [].

Finding Molar Mass

Read our article on how to calculate molar mass.

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