Calculate molar mass (calculate molecular weight, Molar Mass Calculator).Formula:CH3CH2CHCHCH2CHCHCH2CHCH(CH2)7COOH -- 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: CH3CH2CHCHCH2CHCHCH2CHCH(CH2)7COOH
Molar Mass: 278.433 g/mol        1g=3.59152830303879E-03 mol
Percent composition (by mass):
Element  Count           Atom Mass                %(by mass)
C                  18                12.011                        77.65%
H                  30                1.0079                        10.86%
O                  2                  15.999                        11.49%

Top Use: Molar Mass Calculator Formula: Co2(Cr2O7)3 Recent user inquiry: 12/16/2025 16:38Molar Mass Calculator Formula: Na2(H2O)2 12/16/2025 16:38Molar Mass Calculator Formula: 4no 12/16/2025 16:38Molar Mass Calculator Formula: Na2HPO4. 5H2O 12/16/2025 16:38Molar Mass Calculator Formula: (NH4)2SO3 12/16/2025 16:37Molar Mass Calculator Formula: Br2o8