Ammonia, NH3(g), and hydrogen chloride, HCl(g), react to form solid ammonium chloride, NH4Cl(s):
NH3(g) + HCl(g) → NH4Cl(s)
Two 2.50 L flasks at 30.0 oC are connected by a stopcock, as shown in the drawing
One flask contains 5.60g NH3(g), and the other contains 4.60 g HCl(g). When the stopcock is opened, the gases react until one is completely consumed.
What will be the final pressure of the system after the reaction is complete? (Neglect the volume of the ammonium chloride formed.)