Molar mass of iron(II) chloride (FeCl2)

The molar mass of iron(II) chloride (FeCl2) is 126.745 g/mol.

ferrous chloride

Step-by-step calculation

ElementAtomsAtomic massSubtotal
Iron × 1 55.845 = 55.845
Chlorine × 2 35.45 = 70.9
Total126.745 g/mol

Percent composition by element

  • Iron 44.06%
  • Chlorine 55.94%

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H2O NaCl CO2 C6H12O6 H2SO4 Ca(OH)2 CuSO4·5H2O C8H10N4O2

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Related compounds

FeCl3 Iron(III) chloride FeCl3·6H2O Iron(III) chloride hexahydrate NaCl Sodium chloride KCl Potassium chloride HCl Hydrochloric acid Fe2O3 Iron(III) oxide

FAQ

What is the molar mass of FeCl2?

The molar mass of iron(II) chloride (FeCl2) is 126.745 g/mol.

How do you calculate the molar mass of FeCl2?

Multiply the atomic mass of each element by the number of its atoms in FeCl2, then add the results: 1 × 55.845 (Fe) + 2 × 35.45 (Cl) = 126.745 g/mol.

What percentage of FeCl2 is Chlorine?

Chlorine makes up 55.94% of the mass of iron(II) chloride (FeCl2).