Calculate molar mass (calculate molecular weight, Molar Mass Calculator).Formula:2Fe3(Cr7O) -- 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: 2Fe3(Cr7O)
Molar Mass: 549.491 g/mol        1g=1.8198660214635E-03 mol
Percent composition (by mass):
Element  Count           Atom Mass                %(by mass)
Fe                3                  55.84                         30.85%
Cr                7                  51.996                        66.6%
O                  1.1              15.999                        3.28%

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