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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: HAsO4
Molar Mass: 139.9255 g/mol        1g=7.1466601870281E-03 mol
Percent composition (by mass):
Element  Count           Atom Mass                %(by mass)
H                  1                  1.0079                        0.72%
As                1                  74.9216                       53.54%
O                  4                  15.999                        45.74%
Top Use:    Molar Mass Calculator     Formula:  Co2(Cr2O7)3

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