Calculate molar mass (calculate molecular weight, Molar Mass Calculator).Formula:MgCl2(7H2O) -- 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: MgCl2(7H2O)
Molar Mass: 120.2258 g/mol        1g=8.31768222794109E-03 mol
Percent composition (by mass):
Element  Count           Atom Mass                %(by mass)
Mg                1.3              24.305                        26.04%
Cl                2.2              35.453                        64.8%
H                  8.9              1.0079                        7.5%
O                  1.4              15.999                        19.13%

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