Molar Mass of FeH8N2O8S2 (Ferrous Ammonium Sulfate)

Molar Mass Calculator
Chemical formula Write symbols with a capital letter: CoCl2 is cobalt chloride, COCl2 is phosgene. A hydrate takes a dot: CuSO4·5H2O or CuSO4.5H2O

What is the molar mass of FeH8N2O8S2?

Answer

M(FeH8N2O8S2) ≈
284.04 g/mol

Atomic weights: IUPAC standard values (CIAAW, 2024); the sum is rounded to the decimal places of the least precise one — S: 32.06.

Contribution of each element
Element Atoms, n Atomic weight, A n × A, g/mol Mass fraction, w
Feiron155.84555.845 w ≈ 19.66%
Hhydrogen81.00808.0640 w ≈ 2.84%
Nnitrogen214.00728.014 w ≈ 9.86%
Ooxygen815.999127.992 w ≈ 45.06%
Ssulfur232.0664.12 w ≈ 22.57%
Σ = 284.035 ≈ 284.04 g/mol w = 100%

Each fraction is rounded on its own, so the printed ones add up to 99.99%; unrounded, they make exactly 100%.

Atomic weights: CIAAW, Abridged Standard Atomic Weights (2024)

Mass fractions of the elements

S 22.57%Fe 19.66%N 9.86%H 2.84%

See Also

FAQ

What is the molar mass of FeH8N2O8S2?

M(FeH₈N₂O₈S₂) ≈ 284.04 g/mol

How to calculate the molar mass of FeH₈N₂O₈S₂?

Add up the atomic weights of all the atoms in the formula: 55.845 + 8 × 1.0080 + 2 × 14.007 + 8 × 15.999 + 2 × 32.06 = 284.035 ≈ 284.04 g/mol.

How many grams are in 2 moles of FeH₈N₂O₈S₂?

m = n × M = 2 mol × 284.04 g/mol = 568.08 g.