Question

How many oxygen atoms are there in one formula unit of copper(ll) phosphate?

Answer 1

`8` `O` atoms

Explanation:

Copper(II) phosphate has the formula

`Cu_3(PO_4)_2`

The total number of `O` atoms in one formula unit of `Cu_3(PO_4)_2` is `4 xx 2 = **8**` `O` atoms.