Calculate molar mass (calculate molecular weight, Molar Mass Calculator).Formula:FeCl2.7H2O -- 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: FeCl2.7H2O
Molar Mass: 252.8496 g/mol        1g=3.95492023716866E-03 mol
Percent composition (by mass):
Element  Count           Atom Mass                %(by mass)
Fe                1                  55.84                         22.08%
Cl                2                  35.453                        28.04%
H                  14                1.0079                        5.58%
O                  7                  15.999                        44.29%

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