CompoundList
Molecular formula

K2O7S2

1 compound has this formula on CompoundList.

Molar mass
254.31g/mol
Monoisotopic mass
253.8360Da
Atoms
11
Elements
3

The formula K2O7S2 describes a molecule made of 2 potassium atoms, 7 oxygen atoms and 2 sulfur 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

  • K Potassium × 230.75%
    39.098 × 2 = 78.196 g/mol
  • O Oxygen × 744.04%
    15.999 × 7 = 111.993 g/mol
  • S Sulfur × 225.21%
    32.06 × 2 = 64.120 g/mol
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Compounds with the formula K2O7S2

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 K2O7S2?

The molar mass of K2O7S2 is 254.31 g/mol, calculated from standard atomic weights for 2 potassium atoms, 7 oxygen atoms and 2 sulfur atoms. The monoisotopic mass is 253.8360 Da.

How many compounds have the formula K2O7S2?

CompoundList lists 1 compound with the molecular formula K2O7S2, including Potassium pyrosulfate. Compounds that share a formula are isomers. They contain the same atoms arranged differently, so their properties, uses and prices can be very different.