When two cotton plugs, one moistened with ammonia and the other with hydrochloric acid, are simultaneously inserted into opposite ends of a glass tube 87.0 cm long, a white ring of NH4CI forms where gaseous NH3 and gaseous HCI first come into contact.NH3(g)+HCl(g)⟶NH4Cl(s)At what distance from the ammonia-moistened plug does this occur?