Calculate molar mass (calculate molecular weight, Molar Mass Calculator).Formula:Pr(OH)3 -- 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: Pr(OH)3
Molar Mass: 191.9307 g/mol        1g=5.21021389491103E-03 mol
Percent composition (by mass):
Element  Count           Atom Mass                %(by mass)
Pr                1                  140.91                        73.42%
O                  3                  15.999                        25.01%
H                  3                  1.0079                        1.58%

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