Calculate molar mass (calculate molecular weight, Molar Mass Calculator).Formula:FeCl3.12H2O -- 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: FeCl3.12H2O
Molar Mass: 378.3766 g/mol        1g=2.6428695643441E-03 mol
Percent composition (by mass):
Element  Count           Atom Mass                %(by mass)
Fe                1                  55.84                         14.76%
Cl                3                  35.453                        28.11%
H                  24                1.0079                        6.39%
O                  12                15.999                        50.74%

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