The molecular weight of Barium oxide [BaO] is 153.3264.

Barium oxide [BaO] is an inorganic compound of two elements: Barium and Oxygen. The molecular weight of Barium oxide is 153.3264 which can be calculated by adding up the total weight (atomic weight multiplied by their number) of Barium and Oxygen.

CALCULATION PROCEDURE: Barium oxide [BaO] Molecular Weight Calculation

Step 1: Find out the chemical formula and determine constituent atoms and their number in a Barium oxide molecule.
From the chemical formula, you will know different atoms and their number in a Barium oxide molecule. The chemical formula of Barium oxide is BaO. From the chemical formula, you can find that one molecule of Barium oxide has one Barium (Ba) atom and one Oxygen (O) atom.

Step 2: Find out the atomic weights of each atom (from the periodic table).

Atomic weight of Barium (Ba): 137.327 (Ref: Pubchem-56, Ciaaw-barium)
Atomic weight of Oxygen (O): 15.9994 (Ref: Jlab-ele008)

Step 3: Calculate the molecular weight of Barium oxide by adding the total weight of all atoms.

Number of Barium atoms in Barium oxide: 1
Atomic weight of Barium: 137.327
Total weight of Barium atoms in Barium oxide: 137.327 x 1 = 137.327

Number of Oxygen atoms in Barium oxide: 1
Atomic weight of Oxygen: 15.9994
Total weight of Oxygen atoms in Barium oxide: 15.9994 x 1 = 15.9994

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

Molecular weight of Barium oxide (BaO): 137.327 (Barium) + 15.9994 (Oxygen) = 153.3264

So the molecular weight of Barium oxide is 153.3264.

Barium oxide [BaO] Molecular Weight Calculation

REFERENCES:

• Pubchem-56: https://pubchem.ncbi.nlm.nih.gov/element/56
• Ciaaw-barium: https://www.ciaaw.org/barium.htm
• Jlab-ele056: https://education.jlab.org/itselemental/ele056.html
• Jlab-ele008: https://education.jlab.org/itselemental/ele008.html 

See also:

• Hydrogen oxide molecular weight calculation