CompoundList
Molecular formula

O2Se

1 compound has this formula on CompoundList.

Molar mass
110.97g/mol
Monoisotopic mass
111.9064Da
Atoms
3
Elements
2

The formula O2Se describes a molecule made of 2 oxygen atoms and 1 selenium 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

  • O Oxygen × 228.84%
    15.999 × 2 = 31.998 g/mol
  • Se Selenium × 171.16%
    78.971 × 1 = 78.971 g/mol
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Compounds with the formula O2Se

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

Showing 1 to 1 of 1 compounds

Frequently asked questions

What is the molar mass of O2Se?

The molar mass of O2Se is 110.97 g/mol, calculated from standard atomic weights for 2 oxygen atoms and 1 selenium atom. The monoisotopic mass is 111.9064 Da.

How many compounds have the formula O2Se?

CompoundList lists 1 compound with the molecular formula O2Se, including Selenium dioxide. Compounds that share a formula are isomers. They contain the same atoms arranged differently, so their properties, uses and prices can be very different.