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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: Fe2(SO4)3.9H2O
Molar Mass: 561.9812 g/mol        1g=1.7794189556519E-03 mol
Percent composition (by mass):
Element  Count           Atom Mass                %(by mass)
Fe                2                  55.84                         19.87%
S                  3                  32.06                         17.11%
O                  21                15.999                        59.78%
H                  18                1.0079                        3.23%

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

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