Calculate molar mass (calculate molecular weight, Molar Mass Calculator).Formula:3.9H2O -- 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: 3.9H2O
Molar Mass: 165.1332 g/mol        1g=6.05571744506859E-03 mol
Percent composition (by mass):
Element  Count           Atom Mass                %(by mass)
H                  21                1.0079                        12.8%
O                  9.2              15.999                        89.01%

Top Use: Molar Mass Calculator Formula: Co2(Cr2O7)3 Recent user inquiry: 1/6/2025 13:49Molar Mass Calculator Formula: Na7OH8 1/6/2025 13:48Molar Mass Calculator Formula: Cu2Cl-1 1/6/2025 13:48Molar Mass Calculator Formula: nh4no4 1/6/2025 13:47Molar Mass Calculator Formula: CSMnO4 1/6/2025 13:47Molar Mass Calculator Formula: O34Fe34