What is the difference between dilute #HCl# and liquid #HCl#?

Question

Avery Adams · Accepted Answer

One is a solution of a strong acid, the other is just a liquid (no acidic properties).

Liquified HCl is a pure substance in the liquid phase that has been cooled until the gas changes from a gas to a liquid, much like most other gases do when they cool. "Dilute" HCl refers to the process of dissolving a small amount of HCl gas in water. In this instance, the following ionization reaction takes place: #HCl (aq) + H_2O rarr H_3O^+ + Cl^-# This is a complete reaction (hence HCl is a strong acid), and the resulting hydronium ion, #H_3O^+# gives the solution acidic properties. Liquid HCl does not display these properties, as no reaction with #H_2O# occurs.

Wyatt Adkins · Answer

undefined Dilute HCl refers to a solution of hydrochloric acid in water, where the concentration of hydrochloric acid is relatively low. Liquid HCl, on the other hand, refers to pure, undiluted hydrochloric acid in its liquid form. The main difference is in the concentration: dilute HCl has a lower concentration of hydrochloric acid compared to liquid HCl, which is essentially concentrated hydrochloric acid.