Preparation of 1N Hydrochloric Acid

Hydrochloric acid is supplied as a concentrated stock solution [37% (w/w)]. The molarity of the 37% (w/w)  solution is 12.178 (Read ” Molarity of 37% (w/w) Hydrochloric Acid (HCl)“). This solution can be diluted to prepare solutions of know concentrations. 

To prepare one liter of 1N solution hydrochloric acid, mix 82 ml of 37% (w/w) stock solution with 918 ml of distilled or deionized water. The solution can be stored at room temperature. For more details, read the post “Preparation of 1M Hydrochloric Acid From Concentrated Stock Solution (37%, w/w)“.


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