Calculate molar mass (calculate molecular weight, Molar Mass Calculator).Formula:O20 -- 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: O20
Molar Mass: 319.98 g/mol        1g=3.12519532470779E-03 mol
Percent composition (by mass):
Element  Count           Atom Mass                %(by mass)
O                  20                15.999                        100%

Top Use: Molar Mass Calculator Formula: Co2(Cr2O7)3 Recent user inquiry: 5/25/2025 14:23Molar Mass Calculator Formula: C5H6Cl2 5/25/2025 14:22Molar Mass Calculator Formula: c6h14o 5/25/2025 14:22Molar Mass Calculator Formula: Ce(CH3CO2)3 5/25/2025 14:21Molar Mass Calculator Formula: c6h7N 5/25/2025 14:21Molar Mass Calculator Formula: Al2(SO4)3-18(H20)