The molecular weight of Butane (C₄H₁₀) is 58.1228.

Butane (C₄H₁₀) is an organic compound of two elements: Carbon, and Hydrogen. The molecular weight of Butane is 58.1228 which can be calculated by adding up the total weight (atomic weight multiplied by their number) of all its elements.

CALCULATION PROCEDURE: Butane  [C₄H₁₀] Molecular Weight Calculation

Step 1: Find the chemical formula and determine constituent atoms and their number in a Butane molecule.
You will know different atoms and their number in a Butane molecule from the chemical formula. The chemical formula of Butane is C₄H₁₀. The chemical formula shows that one Butane molecule consists of four Carbon (C) atoms and ten 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 Butane molecule by multiplying its atomic weight by its number.

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

Number of Hydrogen atoms in Butane: 10
Atomic weight of Hydrogen (H): 1.008
Total weight of Hydrogen atoms in Butane: 1.008 x 10 = 10.08

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

Molecular weight of Butane: 48.0428 (Carbon) + 10.08 (Hydrogen) = 58.1228

So the molecular weight of Butane is 58.1228.

Butane [C₄H₁₀] 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