Barium Nitrate [Ba(NO3)2] Molecular Weight Calculation

The molecular weight of Barium nitrate [Ba(NO3)2] is 261.33688.

Barium nitrate [Ba(NO3)2] is an inorganic compound of three elements: Barium, Nitrogen, and Oxygen. The molecular weight of Barium nitrate is 261.33688 which can be calculated by adding up the total weight (atomic weight multiplied by their number) of Barium, Nitrogen, and Oxygen.

CALCULATION PROCEDURE: Barium nitrate [Ba(NO3)2] Molecular Weight Calculation

Step 1: Find out the chemical formula and determine constituent atoms and their number in a Barium nitrate molecule.
From the chemical formula, you will know different atoms and their number in a Barium nitrate molecule. The chemical formula of Barium nitrate is Ba(NO3)2. From the chemical formula, you can find that one molecule of Barium nitrate has one Barium (Ba) atom, two Nitrogen (N) atoms, and six Oxygen (O) atoms.

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 Nitrogen (N): 14.00674 (Ref: Jlab-ele007)
Atomic weight of Oxygen (O): 15.9994 (Ref: Jlab-ele008)

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

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

Number of Nitrogen atoms in Barium nitrate: 2
Atomic weight of Nitrogen: 14.00674
Total weight of Nitrogen atoms in Barium nitrate: 14.00674 x 2 = 28.01348

Number of Oxygen atoms in Barium nitrate: 6
Atomic weight of Oxygen: 15.9994
Total weight of Oxygen atoms in Barium nitrate: 15.9994 x 6 = 95.9964

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

Molecular weight of Barium nitrate [Ba(NO3)2]: 137.327 (Barium) + 28.01348 (Nitrogen) + 95.9964 (Oxygen) = 261.33688

So the molecular weight of Barium nitrate is 261.33688.

Barium nitrate [Ba(NO3)2] Molecular Weight Calculation

REFERENCES:

• Jlab-ele007: https://education.jlab.org/itselemental/ele007.html
• 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