Calculate molar mass (calculate molecular weight, Molar Mass Calculator).Formula:(NH4)2Se -- 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: (NH4)2Se
Molar Mass: 114.9772 g/mol        1g=8.6973765233455E-03 mol
Percent composition (by mass):
Element  Count           Atom Mass                %(by mass)
N                  2                  14.007                        24.36%
H                  8                  1.0079                        7.01%
Se                1                  78.9                          68.62%

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