Question

How is hydrogen chloride supplied in the laboratory?

Answer 1

Normally you buy the concentrated acid...........

Explanation:

The reagent that you buy from Fisher is 32-36% (w/w), and is approx. `10.6*mol*L^-1`. This is has a pungent (and very caustic!) vapour pressure of `HCl`.

Of course, you could buy `HCl(g)`, which is supplied in a cylinder, but using this is often more trouble than it is worth................