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Calculate molar mass
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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: NaS2O3.7H2O
Molar Mass: 261.2104 g/mol        1g=3.82833149062978E-03 mol
Percent composition (by mass):
Element  Count           Atom Mass                %(by mass)
Na                1                  22.9898                       8.8%
S                  2                  32.06                         24.55%
O                  10                15.999                        61.25%
H                  14                1.0079                        5.4%
Top Use:    Molar Mass Calculator     Formula:  Co2(Cr2O7)3

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