Calculate molar mass (calculate molecular weight, Molar Mass Calculator).Formula: K2S.9H2O -- 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: K2S.9H2O
Molar Mass: 272.3892 g/mol        1g=3.67121750788945E-03 mol
Percent composition (by mass):
Element  Count           Atom Mass                %(by mass)
K                  2                  39.098                        28.71%
S                  1                  32.06                         11.77%
H                  18                1.0079                        6.66%
O                  9                  15.999                        52.86%

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