Calculate molar mass (calculate molecular weight, Molar Mass Calculator).Formula:Na3AsO4.12H2O -- 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: Na3AsO4.12H2O
Molar Mass: 424.0646 g/mol        1g=2.35813128471464E-03 mol
Percent composition (by mass):
Element  Count           Atom Mass                %(by mass)
Na                3                  22.9898                       16.26%
As                1                  74.9216                       17.67%
O                  16                15.999                        60.36%
H                  24                1.0079                        5.7%

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