Calculate molar mass (calculate molecular weight, Molar Mass Calculator).Formula:42MgO -- 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: 42MgO
Molar Mass: 82.304 g/mol        1g=1.21500777604977E-02 mol
Percent composition (by mass):
Element  Count           Atom Mass                %(by mass)
Mg                2.7              24.305                        80.56%
O                  3.6              15.999                        70.47%

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