Calculate molar mass (calculate molecular weight, Molar Mass Calculator).Formula:Na2SeO4 -- 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: Na2SeO4
Molar Mass: 188.8756 g/mol        1g=5.2944901300115E-03 mol
Percent composition (by mass):
Element  Count           Atom Mass                %(by mass)
Na                2                  22.9898                       24.34%
Se                1                  78.9                          41.77%
O                  4                  15.999                        33.88%

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