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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
3BeO.Al2O3.6SiO2= (BeO)3.Al2O3.6SiO2
Formula: Na2s2o3.5h2o
Molar Mass: 248.1706 g/mol        1g=4.02948616798283E-03 mol
Percent composition (by mass):
Element  count           Atom Mass                %(by mass)
Na                2                  22.9898                       18.53%
s                  2                  32.06                         25.84%
o                  8                  15.999                        51.57%
h                  10                1.0079                        4.06%

Top Use:    Molar Mass Calculator     Formula:  Co2(Cr2O7)3

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