# Boric Acid [H3BO3] Molecular Weight Calculation

The molecular weight of Boric acid [H3BO3] is 61.8332.

Boric acid [H3BO3] is an inorganic compound of three elements: Hydrogen, Boron, and Oxygen. The molecular weight of Boric acid is 61.8332 which can be calculated by adding up the total weight (atomic weight multiplied by their number) of all its elements.

# CALCULATION PROCEDURE: Boric Acid [H3BO3] Molecular Weight Calculation

Step 1: Find out the chemical formula and determine constituent atoms and their number in a Boric acid molecule.
From the chemical formula, you will know different atoms and their number in a Boric acid molecule. The chemical formula of Boric acid is H3BO3. From the chemical formula, you can find that one molecule of Boric acid has three Hydrogen (H) atoms, one Boron (B) atom, and three Oxygen (O) atoms.

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

Atomic weight of Hydrogen (H): 1.008 (Ref: Lanl-1
Atomic weight of Boron (B)
: 10.811 (Ref: Jlab-ele005)
Atomic weight of Oxygen (O): 15.9994 (Ref: Jlab-ele008)

Step 3: Calculate the total weight of each atom present in a Boric acid molecule by multiplying its atomic weight by its number.

Number of Hydrogen atoms in Boric acid: 3
Atomic weight of Hydrogen: 1.008
Total weight of Hydrogen atoms in Boric acid: 1.008 x 3 = 3.024

Number of Boron atoms in Boric acid: 1
Atomic weight of Boron: 10.811
Total weight of Boron atoms in Boric acid: 10.811 x 1 = 10.811

Number of Oxygen atoms in Boric acid: 3
Atomic weight of Oxygen: 15.9994
Total weight of Oxygen atoms in Boric acid: 15.9994 x 3 = 47.9982

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

Molecular weight of Boric acid: 3.024 (Hydrogen) + 10.811 (Boron) + 47.9982 (Oxygen) = 61.8332

So the molecular weight of Boric acid is 61.8332.

Boric Acid [H3BO3] Molecular Weight Calculation

## REFERENCES:

• Lanl-1: https://periodic.lanl.gov/1.shtml
• Pubchem-Hydrogen : https://pubchem.ncbi.nlm.nih.gov/element/Hydrogen
• Jlab-ele005: https://education.jlab.org/itselemental/ele005.html
• Jlab-ele008: https://education.jlab.org/itselemental/ele008.html
• Pubchem-8: https://pubchem.ncbi.nlm.nih.gov/element/8