w(Na3PO4) = 3 mol(22.99g/mol) + 1 mol(30.97g/mol) + 4 mol(16.00g/mol) = 163.96g/molw(PCI5) = 1 mol(30.97g/mol) + 5 mol(35.45g/mol) = 208.22g/molw(P2O5) = 2 mol(30.97g/mol) + 5 mol(16.00g/mol) = 141.94g/molw(PH3) = 1 mol(30.97g/mol) + 3 mol(1.01g/mol) = 33.00g/mol
w(Na3PO4) = 3 mol(22.99g/mol) + 1 mol(30.97g/mol) + 4 mol(16.00g/mol) = 163.96g/mol
w(PCI5) = 1 mol(30.97g/mol) + 5 mol(35.45g/mol) = 208.22g/mol
w(P2O5) = 2 mol(30.97g/mol) + 5 mol(16.00g/mol) = 141.94g/mol
w(PH3) = 1 mol(30.97g/mol) + 3 mol(1.01g/mol) = 33.00g/mol