Calculate molar mass (calculate molecular weight, Molar Mass Calculator).Formula:4HCl.O2 -- 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: 4HCl.O2
Molar Mass: 72.4589 g/mol        1g=1.38009271462857E-02 mol
Percent composition (by mass):
Element  Count           Atom Mass                %(by mass)
H                  5                  1.0079                        6.91%
Cl                1.1              35.453                        54.45%
O                  2.3              15.999                        49.68%

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