Calculate molar mass (calculate molecular weight, Molar Mass Calculator).Formula:4FeB -- 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: 4FeB
Molar Mass: 70.651 g/mol        1g=1.41540813293513E-02 mol
Percent composition (by mass):
Element  Count           Atom Mass                %(by mass)
Fe                1.1              55.84                         84.7%
B                  1.4              10.811                        20.96%

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