Molecules vs Formula Units? E21

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harperlacroix1a
Posts: 43
Joined: Fri Sep 28, 2018 12:19 am

Molecules vs Formula Units? E21

Postby harperlacroix1a » Thu Oct 04, 2018 1:26 pm

In the 6th Edition, questions E21 asks for the amount (in moles) of molecules and formula units. What is the difference between these when calculating?

anthony_trieu2L
Posts: 60
Joined: Fri Sep 28, 2018 12:29 am

Re: Molecules vs Formula Units? E21

Postby anthony_trieu2L » Thu Oct 04, 2018 2:45 pm

There is essentially no difference when calculating for molecules and formula units. Formula units are used for ionic compounds and molecules are used for covalent bonds.

megan blatt 2B
Posts: 61
Joined: Fri Sep 28, 2018 12:28 am

Re: Molecules vs Formula Units? E21

Postby megan blatt 2B » Thu Oct 04, 2018 2:49 pm

I don't believe there is any difference when calculating for molecules vs formula units. In both cases you would use Avogadro's number to convert them to moles. The biggest difference between the two is that a molecule refers to covalently bonded compounds and formula units involve ionic bonds.


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