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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: LaSr3Fe3O10
Molar Mass: 729.275 g/mol        1g=1.37122484659422E-03 mol
Percent composition (by mass):
Element  Count           Atom Mass                %(by mass)
La                1                  138.905                       19.05%
Sr                3                  87.62                         36.04%
Fe                3                  55.84                         22.97%
O                  10                15.999                        21.94%

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

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