What is the % composition of Nitrogen in Ammonium Oxide

he important thing to notice is that ammonium sulfate contains 2 nitrogen atoms, each belonging to one ammonium ion, NH+4 . So, the molar mass of ammonium sulfate is 132.14 g/mol and the molar mass of nitrogen is 14.007 g/mol.

Explanation:

the density(ratio between mass and volume as m/v) decreases from top to bottom in periodic table group as the size increases and nuclear charge decreases. but in periods density increases from left to right as atom size decreases and nuclear charge increases.

your answer would be “dry”