HydroChloric Acid (HCl)

It is prepared in the laboratory by the action of Conc. H2SO4 on chlorides.

H2SO4(aq)) + NaCL(aq)  →  Na2SO4(aq)) + HCL(g)

Then the hydrogen chloride gas can be dissolved in water to form hydrogen chloride acid.

NB: Due to the high solubility of hydrogen chloride, it is used in fountain experiments.

Ammonia and sulphur (iv) oxide can as well be used in the fountain experiment.

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