What is the number of ions in 0.20 mol of (NH4)3PO4?

As changes in energy levels of electrons increase, the frequencies of atomic line spectra they emit

Ammonium perchlorate nh4clo4 is the solid rocket fuel used by the u.s. space shuttle. it reacts with itself to produce nitrogen gas n2 , chlorine gas cl2 , oxygen gas o2 , water h2o , and a great deal of energy. what mass of nitrogen gas is produced by the reaction of 2.1g of ammonium perchlorate?

In ccl4 is there a certain length that the main atom carbon is a certain distance from the chlorine’s?