Calculate molar mass (calculate molecular weight, Molar Mass Calculator).Formula:c2h7o5n2 -- 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: c2h7o5n2
Molar Mass: 139.0863 g/mol        1g=7.18978073325698E-03 mol
Percent composition (by mass):
Element  Count           Atom Mass                %(by mass)
c                  2                  12.011                        17.27%
h                  7                  1.0079                        5.07%
o                  5                  15.999                        57.51%
n                  2                  14.007                        20.14%

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