# Isobutyric Acid [(CH3)2CHCOOH] Molecular Weight Calculation

The molecular weight of Isobutyric acid [(CH3)2CHCOOH] is 88.1056. Isobutyric acid [(CH3)2CHCOOH] is an organic compound of three elements: Carbon, Hydrogen, and Oxygen. The molecular weight of Isobutyric acid is 88.1056 which can be calculated by adding up the total weight (atomic weight multiplied by their number) of Carbon, Hydrogen, and Oxygen.

# CALCULATION PROCEDURE: Isobutyric acid [(CH3)2CHCOOH] Molecular Weight Calculation

Step 1: Find out the chemical formula and determine constituent atoms and their number in an Isobutyric acid molecule.
From the chemical formula, you will know different atoms and their number in an Isobutyric acid molecule. The chemical formula of Isobutyric acid is C4H8O2. From the chemical formula of Isobutyric acid, you can find that one molecule of Isobutyric acid has four Carbon (C) atoms, eight Hydrogen (H) atoms, and two Oxygen (O) atoms.

Step 2: Find out the atomic weights of each atom (from the 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 in an Isobutyric acid molecule by multiplying its atomic weight by its number.

Number of Carbon atoms in Isobutyric acid: 4
Atomic weight of
Carbon (C): 12.0107
Total weight of Carbon atoms in Isobutyric acid: 12.0107 x 4 = 48.0428

Number of Hydrogen atoms in Isobutyric acid: 8
Atomic weight of
Hydrogen (H): 1.008
Total weight of Hydrogen atoms in Isobutyric acid: 1.008 x 8 = 8.064

Number of Oxygen atoms in Isobutyric acid: 2
Atomic weight of Oxygen (O): 15.9994
Total weight of Oxygen atoms in Isobutyric acid: 15.9994 x 2 = 31.9988

Step 4: Calculate the molecular weight of Isobutyric acid by adding up the total weight of all atoms.

Molecular weight of Isobutyric acid: 48.0428 (Carbon) + 8.064 (Hydrogen) + 31.9988 (Oxygen) = 88.1056

So the molecular weight of Isobutyric acid is 88.1056.

Isobutyric acid [(CH3)2CHCOOH] 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 