CompoundList
Molecular formula

As2O5

2 compounds have this formula on CompoundList.

Molar mass
229.84g/mol
Monoisotopic mass
229.8178Da
Atoms
7
Elements
2

The formula As2O5 describes a molecule made of 2 arsenic atoms and 5 oxygen atoms. 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

  • As Arsenic × 265.20%
    74.922 × 2 = 149.844 g/mol
  • O Oxygen × 534.80%
    15.999 × 5 = 79.995 g/mol
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Compounds with the formula As2O5

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

Showing 1 to 2 of 2 compounds

Frequently asked questions

What is the molar mass of As2O5?

The molar mass of As2O5 is 229.84 g/mol, calculated from standard atomic weights for 2 arsenic atoms and 5 oxygen atoms. The monoisotopic mass is 229.8178 Da.

How many compounds have the formula As2O5?

CompoundList lists 2 compounds with the molecular formula As2O5, including Arsenic pentoxide, As2O5. Compounds that share a formula are isomers. They contain the same atoms arranged differently, so their properties, uses and prices can be very different.