Calculate molar mass (calculate molecular weight, Molar Mass Calculator).Formula:H2Al2Si2O8H2O -- 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: H2Al2Si2O8H2O
Molar Mass: 258.1566 g/mol        1g=3.87361779632982E-03 mol
Percent composition (by mass):
Element  Count           Atom Mass                %(by mass)
H                  4                  1.0079                        1.56%
Al                2                  26.982                        20.9%
Si                2                  28.085                        21.76%
O                  9                  15.999                        55.78%

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