Calculate molar mass (calculate molecular weight, Molar Mass Calculator).Formula:K3Cr2O7.7H2O -- 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: K3Cr2O7.7H2O
Molar Mass: 459.3826 g/mol        1g=2.17683473427161E-03 mol
Percent composition (by mass):
Element  Count           Atom Mass                %(by mass)
K                  3                  39.098                        25.53%
Cr                2                  51.996                        22.64%
O                  14                15.999                        48.76%
H                  14                1.0079                        3.07%

Top Use: Molar Mass Calculator Formula: Co2(Cr2O7)3 Recent user inquiry: 6/18/2025 22:30Molar Mass Calculator Formula: P4O10 6/18/2025 22:29Molar Mass Calculator Formula: PNBr 6/18/2025 22:29Molar Mass Calculator Formula: c12h11o12 6/18/2025 22:28Molar Mass Calculator Formula: Ni(NH2CH2CH2NH2)3Cl2 6/18/2025 22:28Molar Mass Calculator Formula: FeAlSO4