The molecular weight of Propyl propionate [CH₃CH₂COOCH₂CH₂CH₃] is 116.159.

To calculate molecular weight of any compound, the first step is to know the constituent atoms and their number in that particular compound. Then calculate the total weight of each atom by multiplying its atomic weight by its number. The sum of total weight of all constituent atoms will be the molecular weight of the compound. Note that the value of atomic weight may differ slightly from different sources.

CALCULATION PROCEDURE: Propyl propionate [CH₃CH₂COOCH₂CH₂CH₃] Molecular Weight Calculation

Step 1: Find out the chemical formula and determine constituent atoms and their number in a Propyl propionate molecule.
From the chemical formula, you will know different atoms and their number in a Propyl propionate molecule. Chemical formula of Propyl propionate is C₆H₁₂O₂. From the chemical formula of Propyl propionate, you can find that one molecule of Propyl propionate has six Carbon (C) atoms, twelve Hydrogen (H) atoms and two Oxygen (O) atoms.

Step 2: Find out atomic weights of each atom (from periodic table).

Atomic weight of Carbon (C): 12.0107 (Ref: Jlab-ele006)
Atomic weight of Hydrogen (H) : 1.008 (Ref: Lanl-1)
Atomic weight of Oxygen (O) : 15.9994 (Ref: Jlab-ele008)

Step 3: Calculate the total weight of each atom present in a Propyl propionate molecule by multiplying its atomic weight by its number.

Number of Carbon atoms in Propyl propionate: 6
Atomic weight of Carbon: 12.0107
Total weight of Carbon atoms in Propyl propionate: 12.0107 x 6 = 72.0642

Number of Hydrogen atoms in Propyl propionate: 12
Atomic weight of Hydrogen: 1.008
Total weight of Hydrogen atoms in Propyl propionate: 1.008 x 12 = 12.096

Number of Oxygen atoms in Propyl propionate: 6
Atomic weight of Oxygen: 15.9994
Total weight of Oxygen atoms in Propyl propionate: 15.9994 x 6 = 31.9994

Step 4: Calculate the molecular weight of Propyl propionate by adding up the total weight of all atoms.

Molecular weight of Propyl propionate: 72.0642 (Carbon) + 12.096 (Hydrogen) + 31.9994 (Oxygen) = 116.159

So the molecular weight of Propyl propionate is 116.159.

Propyl propionate [CH₃CH₂COOCH₂CH₂CH₃] Molecular Weight Calculation

REFERENCES:

• Lanl-1: https://periodic.lanl.gov/1.shtml 
• Pubchem-Hydrogen : https://pubchem.ncbi.nlm.nih.gov/element/Hydrogen 
• Jlab-ele006; https://education.jlab.org/itselemental/ele006.html
• Pubchem-6: https://pubchem.ncbi.nlm.nih.gov/element/6
• Jlab-ele008: https://education.jlab.org/itselemental/ele008.html
• Pubchem-8: https://pubchem.ncbi.nlm.nih.gov/element/8

See also:

• DeoxyPropyl propionate (C5H10O4) Molecular Weight Calculation