The molecular weight of Ethane (C₂H₆) is 30.0694.

Ethane (C₂H₆) is an organic compound of two elements: Carbon, and Hydrogen. The molecular weight of Ethane is 30.0694 which can be calculated by adding up the total weight (atomic weight multiplied by their number) of all its elements.

CALCULATION PROCEDURE: Ethane  [C₂H₆] Molecular Weight Calculation

Step 1: Find the chemical formula and determine constituent atoms and their number in an Ethane molecule.
You will know different atoms and their number in an Ethane molecule from the chemical formula. The chemical formula of Ethane is C₂H₆. The chemical formula shows that one Ethane molecule consists of two Carbon (C) atoms and 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 an Ethane molecule by multiplying its atomic weight by its number.

Number of Carbon atoms in Ethane: 2
Atomic weight of Carbon (C): 12.0107
Total weight of Carbon atoms in Ethane: 12.0107 x 2 = 24.0214

Number of Hydrogen atoms in Ethane: 6
Atomic weight of Hydrogen (H): 1.008
Total weight of Hydrogen atoms in Ethane: 1.008 x 6 = 6.048

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

Molecular weight of Ethane: 24.0214 (Carbon) + 6.048 (Hydrogen) = 30.0694

So the molecular weight of Ethane is 30.0694.

Ethane [C₂H₆] 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