Calculate molar mass (calculate molecular weight, Molar Mass Calculator).Formula:5Mg3PO42 -- 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: 5Mg3PO42
Molar Mass: 780.847 g/mol        1g=1.28066061597214E-03 mol
Percent composition (by mass):
Element  Count           Atom Mass                %(by mass)
Mg                3.2              24.305                        9.98%
P                  1.2              30.974                        4.61%
O                  42.3            15.999                        86.7%

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