Calculate molar mass (calculate molecular weight, Molar Mass Calculator).Formula:ErCl3.6H2O -- 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: ErCl3.6H2O
Molar Mass: 381.6478 g/mol        1g=2.62021685962817E-03 mol
Percent composition (by mass):
Element  Count           Atom Mass                %(by mass)
Er                1                  167.2                         43.81%
Cl                3                  35.453                        27.87%
H                  12                1.0079                        3.17%
O                  6                  15.999                        25.15%

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