Calculate molar mass (calculate molecular weight, Molar Mass Calculator).Formula:OCrK -- 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: OCrK
Molar Mass: 107.093 g/mol        1g=9.33767846637969E-03 mol
Percent composition (by mass):
Element  Count           Atom Mass                %(by mass)
O                  1                  15.999                        14.94%
Cr                1                  51.996                        48.55%
K                  1                  39.098                        36.51%

Top Use: Molar Mass Calculator Formula: Co2(Cr2O7)3 Recent user inquiry: 9/7/2025 13:33Molar Mass Calculator Formula: 4C3H5(OH)3 9/7/2025 13:33Molar Mass Calculator Formula: Ca2H6O 9/7/2025 13:33Molar Mass Calculator Formula: FeO3 9/7/2025 13:33Molar Mass Calculator Formula: Cf4 9/7/2025 13:33Molar Mass Calculator Formula: PbSiO4