Answer is: 1.23 moles of diphosphorus pentoxide.
1.23mol O2x 1molP2O5= 1.23 moles of diphosphorus pentoxide.
I believe the answer is C. let me know if this helped.
One mole of anything, including atoms, is
6.022
×
10
23
(Avogadro's number) of them. Usually you will have a given mass of an element. There are two basic steps to get from the given mass to the number of atoms. They are:
Mass
→
Moles
and
Moles
→
Atoms
