# Aluminium Arsenide [AlAs] Molecular Weight Calculation

The molecular weight of Aluminium arsenide [AlAs] is 101.9031334. Aluminium arsenide [AlAs] is an inorganic compound of two elements: Aluminium and Arsenic. The molecular weight of Aluminium arsenide [AlAs] is 101.9031334 which can be calculated by adding up the total weight (atomic weight multiplied by their number) of all its elements.

# CALCULATION PROCEDURE: Aluminium Arsenide [AlAs] Molecular Weight Calculation

Step 1: Find out the chemical formula and determine constituent atoms and their number in an Aluminium arsenide molecule.
From the chemical formula, you will know different atoms and their number in an Aluminium arsenide molecule. The chemical formula of Aluminium arsenide is AlAs. From the chemical formula, you can find that one molecule of Aluminium arsenide consists of one Aluminium (Al) atom and one Arsenic (As) atom.

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

Atomic weight of Aluminium (Al): 26.9815384 (Ref: ciaaw-aluminium)
Atomic weight of Arsenic (As): 74.921595 (Ref: Jlab-ele033, ciaaw-arsenic)

Step 3: Calculate the molecular weight of Aluminium arsenide by adding the total weight of all atoms.

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

Number of Arsenic (As) atoms in Aluminium arsenide: 1
Atomic weight of Arsenic: 74.921595
Total weight of Arsenic in Aluminium arsenide: 74.921595 x 1 = 74.921595

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

Molecular weight of Aluminium arsenide: 26.9815384 (Aluminium) + 74.921595 (Arsenic) = 101.9031334

So the molecular weight of Aluminium arsenide is 101.9031334.

Aluminium Arsenide [AlAs] Molecular Weight Calculation

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