Calculate molar mass (calculate molecular weight, Molar Mass Calculator).Formula:Na2S2H2O -- 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: Na2S2H2O
Molar Mass: 128.1144 g/mol        1g=7.80552381309205E-03 mol
Percent composition (by mass):
Element  Count           Atom Mass                %(by mass)
Na                2                  22.9898                       35.89%
S                  2                  32.06                         50.05%
H                  2                  1.0079                        1.57%
O                  1                  15.999                        12.49%

Top Use: Molar Mass Calculator Formula: Co2(Cr2O7)3 Recent user inquiry: 12/16/2025 00:16Molar Mass Calculator Formula: 2pbs 12/16/2025 00:16Molar Mass Calculator Formula: hn4oh 12/16/2025 00:15Molar Mass Calculator Formula: C5O3H6 12/16/2025 00:15Molar Mass Calculator Formula: Na3C3H5OCOO 12/16/2025 00:15Molar Mass Calculator Formula: CaC2H6C2O4