Molar mass

Molar Mass of Propionic Acid

The molar mass of propionic acid (CH3CH2COOH) is 74.079 g/mol.

Propionic Acid at a glance

PropertyValue
Molar mass74.079 g/mol
Molecular weight74.079 u
Chemical formulaCH3CH2COOH
Monoisotopic mass74.0367794 u
CAS number79-09-4
PubChem CID1032

How to calculate the molar mass of propionic acid

3 × 12.011 + 6 × 1.008 + 2 × 15.999 = 74.079 g/mol

  1. Count the atoms in CH3CH2COOH: C 3, H 6, O 2.
  2. Multiply each atom count by the atomic weight of the element.
  3. Add the results to get 74.079 g/mol.

Elemental composition of propionic acid

ElementAtomsAtomic weightMass (g/mol)Mass %
C Carbon312.01136.03348.641%
H Hydrogen61.0086.0488.1643%
O Oxygen215.99931.99843.194%

Grams and moles of propionic acid

AmountEquals
1 g0.013499 mol
10 g0.13499 mol
100 g1.3499 mol
0.1 mol7.4079 g
1 mol74.079 g
1 g, in particles8.1293 × 10^21