# Lanthanum Aluminate [LaAlO3] Molecular Weight Calculation

The molecular weight of Lanthanum aluminate [LaAlO3] is 162.0455768.

Lanthanum aluminate [LaAlO3] (CAS Registry Number: 12003-65-5) is an inorganic compound of three elements: Lanthanum (La), Aluminium (Al), and Oxygen (O). The molecular weight of Lanthanum aluminate [LaAlO3] is 162.0455768 which can be calculated by adding up the total weight (atomic weight multiplied by their number) of all its elements.

# CALCULATION PROCEDURE: Lanthanum aluminate [LaAlO3] Molecular Weight Calculation

Step 1: Find out the chemical formula and determine constituent atoms and their number in a Lanthanum aluminate molecule.
From the chemical formula, you will know different atoms and their number in a Lanthanum aluminate molecule. The chemical formula of Lanthanum aluminate is LaAlO3. From the chemical formula, you can find that one molecule of Lanthanum aluminate consists of one Lanthanum (La) atom, one Aluminium (Al) atom, and three Oxygen (O) atoms.

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

Atomic weight of Lanthanum (La): 138.90547 (Ref: Jlab-ele057, ciaaw-lanthanum, Nist-57)
Atomic weight of Aluminium (Al): 26.9815384 (Ref: ciaaw-aluminium)
Atomic weight of Oxygen (O): 15.9994 (Ref: Jlab-ele008)

Step 3: Calculate the molecular weight of Lanthanum aluminate by adding the total weight of all atoms.

Number of Lanthanum (La) atoms in Lanthanum aluminate: 1
Atomic weight of Lanthanum: 138.90547
Total weight of Lanthanum atoms in Lanthanum aluminate: 138.90547 x 1 = 138.90547

Number of Aluminium atoms in Lanthanum aluminate: 1
Atomic weight of Aluminium: 26.9815384
Total weight of Aluminium atoms in Lanthanum aluminate: 26.9815384 x 1 = 26.9815384

Number of Oxygen (O) atoms in Lanthanum aluminate: 3
Atomic weight of Oxygen: 15.9994
Total weight of Oxygen atoms in Lanthanum aluminate: 15.9994 x 3 = 47.9982

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

Molecular weight of Lanthanum aluminate: 138.90547 (Lanthanum) + 26.9815384 (Aluminium) + 47.9982 (Oxygen) = 162.0455768

So the molecular weight of Lanthanum aluminate is 162.0455768.

Lanthanum aluminate [LaAlO3] Molecular Weight Calculation

## REFERENCES:

• Ciaaw-aluminium: https://www.ciaaw.org/aluminium.htm
• Jlab-ele008: https://education.jlab.org/itselemental/ele008.html
• Jlab-ele057: https://education.jlab.org/itselemental/ele057.html
• ciaaw-lanthanum: https://www.ciaaw.org/lanthanum.htm
• Nist-57: https://physics.nist.gov/cgi-bin/Elements/elInfo.pl?element=57
• https://commonchemistry.cas.org/detail?cas_rn=12003-65-5

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