Do particles in air take the space of the container when some particles of air are released?

Aconcentrated solution of ammonia is 14.8m and has a density of 0.899g/l. what is the concentration of ammonia in this solution in weight percent (%w/w)?

Which type of intermolecular attractions holds ammonia molecules together with other ammonia molecules?

If a particle has z = 25 and 23 electrons, what is its charge?