Calculate molar mass (calculate molecular weight, Molar Mass Calculator).Formula:NaH2AsO4 -- 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: NaH2AsO4
Molar Mass: 163.9232 g/mol        1g=6.10041775660797E-03 mol
Percent composition (by mass):
Element  Count           Atom Mass                %(by mass)
Na                1                  22.9898                       14.02%
H                  2                  1.0079                        1.23%
As                1                  74.9216                       45.71%
O                  4                  15.999                        39.04%

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