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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: KAl(SO4)2-12(H2O)
Molar Mass: 264.2068 g/mol        1g=3.78491393862686E-03 mol
Percent composition (by mass):
Element  Count           Atom Mass                %(by mass)
K                  0.7              39.098                        10.26%
Al                0.6              26.982                        5.67%
S                  1.6              32.06                         19.73%
O                  8.2              15.999                        49.96%
H                  -9.9            1.0079                        -3.78%

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

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