Calculate molar mass (calculate molecular weight, Molar Mass Calculator).Formula:3Na2S2O3.5H2O -- 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: 3Na2S2O3.5H2O
Molar Mass: 251.1706 g/mol        1g=3.98135769074884E-03 mol
Percent composition (by mass):
Element  Count           Atom Mass                %(by mass)
Na                2.1              22.9898                       19.5%
S                  2.1              32.06                         26.72%
O                  8.2              15.999                        52.15%
H                  13                1.0079                        5.21%

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