Formelenhed
En formelenhed af et stof er lig med den mængde af stoffet, der angives i stoffets formel.
For nogle stoffer, som C12H22O11, er en formelenhed således det samme som et molekyle. For stoffer der indgår i krystaller er en formelenhed lig med den mindste sammensætning af atomer med en nettoladning på 0; f.eks. er en formelenhed BaBr2 netop et bariumatom og to bromatomer.[1]
Se også
Kilder
- ^ "formelenhed | Gyldendal - Den Store Danske". Arkiveret fra originalen 27. oktober 2015. Hentet 23. oktober 2015.
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