Calculate molar mass (calculate molecular weight, Molar Mass Calculator).Formula:Fr2SO3 -- 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: Fr2SO3
Molar Mass: 526.057 g/mol        1g=1.90093468958687E-03 mol
Percent composition (by mass):
Element  Count           Atom Mass                %(by mass)
Fr                2                  223                           84.78%
S                  1                  32.06                         6.09%
O                  3                  15.999                        9.12%

Top Use: Molar Mass Calculator Formula: Co2(Cr2O7)3 Recent user inquiry: 12/19/2025 19:02Molar Mass Calculator Formula: 76 12/19/2025 19:02Molar Mass Calculator Formula: K2(C2O4)2.2H2O 12/19/2025 19:02Molar Mass Calculator Formula: Cr(Cl)3(H2O)6 12/19/2025 19:02Molar Mass Calculator Formula: C4H10N4 12/19/2025 19:02Molar Mass Calculator Formula: CaCO3.3H2O