What is the molar mass of AlCl3?


Quick Answer

The molar mass of AlCl3, or aluminum chloride, is 133.34 grams per mole. The value is determined by adding the weight of aluminum, which is 26.98 grams, to thrice the weight of chlorine, which is 35.45 grams. The weight of chlorine is tripled because AlCl3 has three atoms of chlorine.

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Full Answer

Aluminum chloride has a white appearance, although due to contamination with iron trichloride, it is also commonly seen as a yellow powder. It can adopt three different structures, and the solid form of the compound has a low melting and boiling point. Aluminum chloride is invaluable to the construction industry because of its part in the production of aluminum metal. It also has uses in other niche markets like the chemical industry.

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