Calculate molar mass (calculate molecular weight, Molar Mass Calculator).Formula:Al2S3O9 -- e-Tools Age

	Calculate molar mass
	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: Al2S3O9
Molar Mass: 294.135 g/mol        1g=3.3997994118347E-03 mol
Percent composition (by mass):
Element  Count           Atom Mass                %(by mass)
Al                2                  26.982                        18.35%
S                  3                  32.06                         32.7%
O                  9                  15.999                        48.95%

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