number of moles, molecules, and formula units?
Moderators: Chem_Mod, Chem_Admin
-
- Posts: 38
- Joined: Wed Feb 14, 2018 3:01 am
number of moles, molecules, and formula units?
can someone explain to me the difference between number of moles, molecules, and formula units? I’m a bit confused. Thank you!
-
- Posts: 43
- Joined: Fri Sep 28, 2018 12:28 am
Re: number of moles, molecules, and formula units?
so avogadro's number is a constant, 6.022*10^23 to be exact. In one mole, there are 6.022*10^23 "things". These things can be either atoms, molecules, or formula units depending on what type of question you are dealing with. From what I understand, a formula unit is basically a molecule for ionic compounts like NaCl is a formula unit, but I'm still not exactly sure about what it is.
-
- Posts: 48
- Joined: Fri Sep 28, 2018 12:27 am
Re: number of moles, molecules, and formula units?
Atoms, molecules, and formula units all fall under the same category of actual tangible units.
There physically exist atoms, molecules, and formula units (which are basically ionic compounds).
However, mole is a hypothetical unit that exists to help us compare the mass of various elements.
For each mole, there are 6.0221*1023 atoms/molecules/formula units.
I think haha.
There physically exist atoms, molecules, and formula units (which are basically ionic compounds).
However, mole is a hypothetical unit that exists to help us compare the mass of various elements.
For each mole, there are 6.0221*1023 atoms/molecules/formula units.
I think haha.
Re: number of moles, molecules, and formula units?
An elements mass per mole is measured in atoms. A molecule is measured in mole per molecules. Formula units simply refers to a compound with a metal and nonmetal (ionic) which is then referred to formula units.
Return to “Accuracy, Precision, Mole, Other Definitions”
Who is online
Users browsing this forum: No registered users and 5 guests