CompoundList
Molecular formula

H2S

8 compounds have this formula on CompoundList.

Molar mass
34.08g/mol
Monoisotopic mass
39.9868Da
Atoms
3
Elements
2

The formula H2S describes a molecule made of 2 hydrogen atoms and 1 sulfur atom. It is written in Hill notation: with no carbon present, every element is listed in alphabetical order. The formula tells you which atoms are present, not how they are connected, which is why several different chemicals can share it.

Elemental composition

  • H Hydrogen × 25.92%
    1.008 × 2 = 2.016 g/mol
  • S Sulfur × 194.08%
    32.06 × 1 = 32.060 g/mol
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Compounds with the formula H2S

Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.

Showing 1 to 8 of 8 compounds

Frequently asked questions

What is the molar mass of H2S?

The molar mass of H2S is 34.08 g/mol, calculated from standard atomic weights for 2 hydrogen atoms and 1 sulfur atom. The monoisotopic mass is 39.9868 Da.

How many compounds have the formula H2S?

CompoundList lists 8 compounds with the molecular formula H2S, including Hydrogen sulfide, Hydrogen sulfide-d2, Hydron, sulfanide. Compounds that share a formula are isomers. They contain the same atoms arranged differently, so their properties, uses and prices can be very different.