Atomic Weight, Molecular Weight, Formula Weight  [ENDORSED]

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Jennifer Guzman 4C
Posts: 38
Joined: Wed Feb 14, 2018 3:01 am

Atomic Weight, Molecular Weight, Formula Weight

Postby Jennifer Guzman 4C » Thu Oct 04, 2018 1:50 pm

I noticed the only difference between atomic weight, molecular weight, and formula weight is wether it was an element, molecular compound, or ionic compound but is there any other difference between atomic weight, molecular weight, and formula weight? or are they basically the same thing?

MaggieMatern_Dis1H
Posts: 30
Joined: Fri Sep 28, 2018 12:19 am

Re: Atomic Weight, Molecular Weight, Formula Weight  [ENDORSED]

Postby MaggieMatern_Dis1H » Thu Oct 04, 2018 2:00 pm

Atomic and molecular weight apply to atoms and molecules, but formula units are slightly different . They all apply to the same concept, they only differ in that atomic weight only applies to atoms (e.g. Ag) molecular weight applies to molecules (e.g. H20). Formula units are the same thing as empirical formula (lowest whole number ratio of atoms in a compound), therefore the formula weight would be the weight for the empirical unit.

Hope this helps!

Lisa Werner 2F
Posts: 72
Joined: Fri Sep 28, 2018 12:17 am

Re: Atomic Weight, Molecular Weight, Formula Weight

Postby Lisa Werner 2F » Sun Oct 07, 2018 9:24 pm

From my understanding, although the atomic weight, molecular weight, and formula weight are slightly different, they can all be found by finding the total weight of the atom(s) in a given atom, molecule, or formula. Therefore, the basic concept is the same.


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