Question

mass and atoms quick check
which statement describes the quantities that can be found using the number of moles? (1 point)
it can be used to find the number of molecules, but not atoms or ions.
it can be used to find the number of molecules or atoms, but not ions.
it can be used to find the number of molecules, atoms, or ions.
it can be used to find the number of molecules or ions, but not atoms.

Explanation:

The mole is a unit that can be used to count entities such as molecules, atoms, or ions. Avogadro's number ($6.022\times10^{23}$) is used to convert the number of moles to the number of these entities. For example, if we have 1 mole of a substance, whether it is composed of molecules (e.g., $H_2O$), atoms (e.g., He), or ions (e.g., $Na^+$ in a sodium - ion containing compound), the number of these entities is $6.022\times10^{23}$.

Answer:

It can be used to find the number of molecules, atoms, or ions.