Question

Question #6accc

Answer 1

In fact we can use `"moles"` to measure all of these species.

Explanation:

The answer they probably wanted you to give was to exclude `"electrons"`. Nevertheless, we can certainly measure electrons using molar quantities.

For redox reactions, we could write:

`Na(s) rarr Na^(+) + e^-`

And if a `23*g` mass of sodium metal is oxidized, certainly `"Avogadro's number of electrons"` are evolved.

`"Avogadro's number"` is simply a number, admittedly it is a very large number, `6.022xx10^23*mol^-1`.