# How many phosphorus atoms in a 0.0750*mol quantity of "hydroxyapatite"?

Is not $\text{hydroxyapatite}$, $C {a}_{10} {\left(P {O}_{4}\right)}_{6} {\left(O H\right)}_{2}$?
SO in $0.0750 \cdot m o l$ of the stuff there are $0.0750 \cdot m o l \times 6$ $m o l \cdot P$ atoms...........