# Dodecane [C12H26] Molecular Weight Calculation

The molecular weight of Dodecane (C12H26) is 170.3364. Dodecane (C12H26) is an organic compound of two elements: Carbon, and Hydrogen. The molecular weight of Dodecane is 170.3364 which can be calculated by adding up the total weight (atomic weight multiplied by their number) of all its elements.

# CALCULATION PROCEDURE: Dodecane  [C12H26] Molecular Weight Calculation

Step 1: Find the chemical formula and determine constituent atoms and their number in a Dodecane molecule.
You will know different atoms and their number in a Dodecane molecule from the chemical formula. The chemical formula of Dodecane is C12H26. The chemical formula shows that one Dodecane molecule consists of twelve Carbon (C) atoms and twenty-six Hydrogen (H) 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)

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

Number of Carbon atoms in Dodecane: 12
Atomic weight of Carbon (C): 12.0107
Total weight of Carbon atoms in Dodecane: 12.0107 x 12 = 144.1284

Number of Hydrogen atoms in Dodecane: 26
Atomic weight of Hydrogen (H): 1.008
Total weight of Hydrogen atoms in Dodecane: 1.008 x 26 = 26.208

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

Molecular weight of Dodecane: 144.1284 (Carbon) + 26.208 (Hydrogen) = 170.3364

So the molecular weight of Dodecane is 170.3364.

Dodecane [C12H26] Molecular Weight Calculation

## REFERENCES:

• Lanl-1: https://periodic.lanl.gov/1.shtml
• Jlab-ele006: https://education.jlab.org/itselemental/ele006.html 