Formula Units

Lauren Bui 1E
Posts: 54
Joined: Sat Jul 20, 2019 12:15 am

Formula Units

What exactly are formula units?

Chem_Mod
Posts: 19551
Joined: Thu Aug 04, 2011 1:53 pm
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Re: Formula Units

It is one entity of a substance, a unit for a formula, like 1 H2O molecule. The way we use them in our course, they are synonymous with molecules or atoms in the sense that they are associated with Avogadro's number.

Cassidy Kohlenberger 3D
Posts: 51
Joined: Wed Sep 18, 2019 12:19 am

Re: Formula Units

Formula units are essentially empirical formulas for ionic compounds. It's the lowest whole number ratio of ions in an ionic compound. Most of the time formula units represent molecules, therefore they can be calculated by using Avogadro's number in a stoichiometric conversion. Hope this helps :)

Lauren Bui 1E
Posts: 54
Joined: Sat Jul 20, 2019 12:15 am

Re: Formula Units

That clears things up a lot! Thank you :)