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 

See also:

• Hydrogen chloride molecular weight calculation