Calculate molar mass (calculate molecular weight, Molar Mass Calculator).Formula:C4H5As -- 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: C4H5As
Molar Mass: 128.0051 g/mol        1g=7.81218873310517E-03 mol
Percent composition (by mass):
Element  Count           Atom Mass                %(by mass)
C                  4                  12.011                        37.53%
H                  5                  1.0079                        3.94%
As                1                  74.9216                       58.53%

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