Found it http://my.ccsd.net/userdocs/documents/uGKpi9UAEwFpSIgE.pdf
Sodium is Na, so there's 3 moles of that. Phosphorus is P, there's 1 mole of that. Oxygen is O, there's 4 moles of that.
The scientist should make a new hypothesis and do a new experiment! That is what I say!
