Calculate molar mass (calculate molecular weight, Molar Mass Calculator).Formula:2Na2S2O3.6H2O -- 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: 2Na2S2O3.6H2O
Molar Mass: 268.1854 g/mol        1g=3.72876375820608E-03 mol
Percent composition (by mass):
Element  Count           Atom Mass                %(by mass)
Na                2.1              22.9898                       17.89%
S                  2.1              32.06                         24.65%
O                  9.1              15.999                        54.44%
H                  14                1.0079                        5.26%

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