Molar mass

Molar Mass of Stearic Acid

The molar mass of stearic acid (C18H36O2) is 284.484 g/mol.

Stearic Acid at a glance

PropertyValue
Molar mass284.484 g/mol
Molecular weight284.484 u
Chemical formulaC18H36O2
Monoisotopic mass284.27153 u
CAS number57-11-4
PubChem CID5281

How to calculate the molar mass of stearic acid

18 × 12.011 + 36 × 1.008 + 2 × 15.999 = 284.484 g/mol

  1. Count the atoms in C18H36O2: C 18, H 36, O 2.
  2. Multiply each atom count by the atomic weight of the element.
  3. Add the results to get 284.484 g/mol.

Elemental composition of stearic acid

ElementAtomsAtomic weightMass (g/mol)Mass %
C Carbon1812.011216.19875.997%
H Hydrogen361.00836.28812.756%
O Oxygen215.99931.99811.248%

Grams and moles of stearic acid

AmountEquals
1 g0.0035151 mol
10 g0.035151 mol
100 g0.35151 mol
0.1 mol28.448 g
1 mol284.48 g
1 g, in particles2.1169 × 10^21