CompoundList
Molecular formula

Al4H12Mg18O72Si21

We do not list any compound with this exact formula yet.

Molar mass
2299.23g/mol
Atoms
127
Elements
5

The formula Al4H12Mg18O72Si21 describes a molecule made of 4 aluminium atoms, 12 hydrogen atoms, 18 magnesium atoms, 72 oxygen atoms and 21 silicon 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

  • Al Aluminium × 44.69%
    26.982 × 4 = 107.928 g/mol
  • H Hydrogen × 120.53%
    1.008 × 12 = 12.096 g/mol
  • Mg Magnesium × 1819.03%
    24.305 × 18 = 437.490 g/mol
  • O Oxygen × 7250.10%
    15.999 × 72 = 1151.928 g/mol
  • Si Silicon × 2125.65%
    28.085 × 21 = 589.785 g/mol
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Compounds with the formula Al4H12Mg18O72Si21

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Frequently asked questions

What is the molar mass of Al4H12Mg18O72Si21?

The molar mass of Al4H12Mg18O72Si21 is 2299.23 g/mol, calculated from standard atomic weights for 4 aluminium atoms, 12 hydrogen atoms, 18 magnesium atoms, 72 oxygen atoms and 21 silicon atoms.