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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: W73O25
Molar Mass: 13817.375 g/mol        1g=7.23726467581577E-05 mol
Percent composition (by mass):
Element  Count           Atom Mass                %(by mass)
W                  73                183.8                         97.11%
O                  25                15.999                        2.89%
Top Use:    Molar Mass Calculator     Formula:  Co2(Cr2O7)3

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