In Which Of The Following Pairs Of Compounds Do Both Members Of The Pair Contain

In which of the following pairs of compounds do both members of the pair containthe same number of moles of nitrogen atoms?3.00 moles HN3 and 3.00 moles HN3.50moles H2O5 and 1.0 mole N2O42.00 moles HNO3 and 3.00 moles HNO2