The molecular weight of Decane (C₁₀H₂₂) is 142.283.

Decane (C₁₀H₂₂) is an organic compound of two elements: Carbon, and Hydrogen. The molecular weight of Decane is 142.283 which can be calculated by adding up the total weight (atomic weight multiplied by their number) of all its elements.

CALCULATION PROCEDURE: Decane  [C₁₀H₂₂] Molecular Weight Calculation

Step 1: Find the chemical formula and determine constituent atoms and their number in a Decane molecule.
You will know different atoms and their number in a Decane molecule from the chemical formula. The chemical formula of Decane is C₁₀H₂₂. The chemical formula shows that one Decane molecule consists of ten Carbon (C) atoms and twenty-two 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 Decane molecule by multiplying its atomic weight by its number.

Number of Carbon atoms in Decane: 10
Atomic weight of Carbon (C): 12.0107
Total weight of Carbon atoms in Decane: 12.0107 x 10 = 120.107

Number of Hydrogen atoms in Decane: 22
Atomic weight of Hydrogen (H): 1.008
Total weight of Hydrogen atoms in Decane: 1.008 x 22 = 22.176

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

Molecular weight of Decane: 120.107 (Carbon) + 22.176 (Hydrogen) = 142.283

So the molecular weight of Decane is 142.283.

Decane [C₁₀H₂₂] 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