Answer:
13 moles of oxygen
Step-by-step explanation:
A mole of a substance is the unit of measuring the number of particles within a chemical substance.
The given compound is:
Ca₅ (PO₄)₃OH
This is a mole of Ca₅ (PO₄)₃OH
In this compound we have:
5 moles of Ca
3 mole of P
13 mole of O
1 mole of H
So,
In 1 mole of Ca₅ (PO₄)₃OH, we have 13 moles of oxygen