Many experiments use gas manifolds to transfer gases from one reaction vessel to another. knowing the volume of such manifolds can be crucial. bulb a was filled with 540. ml of n2 gas. when opened to

Many experiments use gas manifolds to transfer gases from one reaction vessel to another. knowing the volume of such manifolds can be crucial. bulb a was filled with 540. ml of n2 gas. when opened to the glass manifold, the pressure was allowed to equilibrate and the new pressure (read at location p) was 295 torr. next, an empty 549 ml bulb labeled b was opened to the manifold. the new pressure read was 228 torr. what is the available volume in the glass manifold assuming ideal gas law?