The molecular weight of Aluminium bromide [AlBr_{3}] is 266.6935384.

Aluminium bromide [AlBr_{3}] is an inorganic compound of two elements: Aluminium and Bromine. The molecular weight of Aluminium bromide [AlBr_{3}] is 266.6935384 which can be calculated by adding up the total weight (atomic weight multiplied by their number) of all its elements.

**CALCULATION PROCEDURE: Aluminium Bromide [AlBr**_{3}] Molecular Weight Calculation

_{3}] Molecular Weight Calculation

**Step 1: Find out the chemical formula and determine constituent atoms and their number in an Aluminium bromide molecule. **From the chemical formula, you will know different atoms and their number in an Aluminium bromide molecule. The chemical formula of Aluminium bromide is AlBr

_{3}. From the chemical formula, you can find that one molecule of Aluminium bromide consists of one Aluminium (Al) atom and three Bromine (Br) atoms.

**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 Bromine (Br): 79.904 (Ref: Jlab-ele035)

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

Number of Aluminium atoms in Aluminium bromide: 1

Atomic weight of Aluminium: 26.9815384

Total weight of Aluminium atoms in Aluminium bromide: 26.9815384 x 1 = 26.9815384

Number of Bromine (Br) atoms in Aluminium bromide: 3

Atomic weight of Bromine: 79.904

Total weight of Bromine atoms in Aluminium bromide: 79.904 x 3 = 239.712

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

Molecular weight of Aluminium bromide: 26.9815384 (Aluminium) + 239.712 (Bromine) = 266.6935384

So the molecular weight of Aluminium bromide is 266.6935384.

Aluminium bromide [AlBr_{3}] Molecular Weight Calculation

Molecular weight of Aluminium bromide [AlBr_{3}] | |||

Constituent atoms | Number of each atom | Atomic weight | Total weight |

Aluminium (Al) | 1 | 26.9815384 | 26.9815384 |

Bromine (Br) | 3 | 79.904 | 239.712 |

Molecular weight of Aluminium bromide [AlBr_{3}]: | 266.6935384 |

## REFERENCES:

- Ciaaw-aluminium: https://www.ciaaw.org/aluminium.htm
- Jlab-ele035: https://education.jlab.org/itselemental/ele035.htm

# See also:

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