The molecular weight of Butene (C₄H₈) is 56.1068.

Butene (C₄H₈) is an organic compound of two elements: Carbon, and Hydrogen. The molecular weight of Butene is 56.1068 which can be calculated by adding up the total weight (atomic weight multiplied by their number) of all its elements.

CALCULATION PROCEDURE: Butene  [C₄H₈C₄H₁₀] Molecular Weight Calculation

Step 1: Find the chemical formula and determine constituent atoms and their number in a Butene molecule.
You will know different atoms and their number in a Butene molecule from the chemical formula. The chemical formula of Butene is C₄H₈. The chemical formula shows that one Butene molecule consists of four Carbon (C) atoms and eight 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 Butene molecule by multiplying its atomic weight by its number.

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

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

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

Molecular weight of Butene: 48.0428 (Carbon) + 8.064 (Hydrogen) = 56.1068

So the molecular weight of Butene is 56.1068.

Butene [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