Calculate molar mass (calculate molecular weight, Molar Mass Calculator).Formula:As2(SO4) -- e-Tools Age

	Calculate molar mass
	Enter a chemical formula in the field below, pay attention to formula is case sensitive!!!	The formula should be entered as: H₂SO₄= H2SO4 CuSO₄.5H2O=CuSO4.5H2O 3BeO.Al2O₃.6SiO₂= (BeO)3.Al2O3.6SiO2

Calculations:
Formula: As2(SO4)
Molar Mass: 245.8992 g/mol        1g=4.06670700840019E-03 mol
Percent composition (by mass):
Element  Count           Atom Mass                %(by mass)
As                2                  74.9216                       60.94%
S                  1                  32.06                         13.04%
O                  4                  15.999                        26.03%

Top Use: Molar Mass Calculator Formula: Co2(Cr2O7)3 Recent user inquiry: 12/30/2025 13:22Molar Mass Calculator Formula: Na2Co3 12/30/2025 13:22Molar Mass Calculator Formula: C2H6O4S 12/30/2025 13:22Molar Mass Calculator Formula: NahS 12/30/2025 13:22Molar Mass Calculator Formula: C2H2F2 12/30/2025 13:22Molar Mass Calculator Formula: Bao