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2. Hydrochloric acid - Wikipedia

   en.wikipedia.org/wiki/Hydrochloric_acid

   Hydrochloric acid, also known as muriatic acid or spirits of salt, is an aqueous solution of hydrogen chloride (HCl). It is a colorless solution with a distinctive pungent smell. It is classified as a strong acid. It is a component of the gastric acid in the digestive systems of most animal species, including humans.

3. Hydrochloric acid (data page) - Wikipedia

   en.wikipedia.org/wiki/Hydrochloric_acid_(data_page)

   Hydrochloric acid . This page provides supplementary chemical data on Hydrochloric acid. Material Safety Data Sheet. The handling of this chemical may incur notable ...

4. Aqua regia - Wikipedia

   en.wikipedia.org/wiki/Aqua_regia

   The hydrochloric acid provides a ready supply of chloride ions (Cl −), which react with the gold ions to produce tetrachloroaurate(III) anions ([AuCl 4] −), also in solution. The reaction with hydrochloric acid is an equilibrium reaction that favors formation of tetrachloroaurate(III) anions.

5. Hydrogen chloride - Wikipedia

   en.wikipedia.org/wiki/Hydrogen_chloride

   Small amounts of hydrogen chloride for laboratory use can be generated in an HCl generator by dehydrating hydrochloric acid with either sulfuric acid or anhydrous calcium chloride. Alternatively, HCl can be generated by the reaction of sulfuric acid with sodium chloride: [17] NaCl + H 2 SO 4 → NaHSO 4 + HCl↑. This reaction occurs at room ...

6. Chemical drain cleaners - Wikipedia

   en.wikipedia.org/wiki/Chemical_drain_cleaners

   Acidic drain cleaners usually contain sulfuric acid at high concentrations. [1] It can dissolve cellulose, proteins like hair, and fats via acid hydrolysis. While there are many methods for unclogging drains, one of the most effective solutions is using hydrochloric acid (HCl), a powerful chemical cleaner. [2]

7. Buffer solution - Wikipedia

   en.wikipedia.org/wiki/Buffer_solution

   The first row, labelled I, lists the initial conditions: the concentration of acid is C 0, initially undissociated, so the concentrations of A − and H + would be zero; y is the initial concentration of added strong acid, such as hydrochloric acid.

8. Acid strength - Wikipedia

   en.wikipedia.org/wiki/Acid_strength

   Acid strength is the tendency of an acid, ... the concentrations of and thus the values of ... hydrochloric acid is a weak acid in solution in pure acetic acid, ...

9. pH - Wikipedia

   en.wikipedia.org/wiki/PH

   A strong acid, such as hydrochloric acid, at concentration 1 mol dm −3 has a pH of 0, while a strong alkali like sodium hydroxide, at the same concentration, has a pH of 14. Since pH is a logarithmic scale, a difference of one in pH is equivalent to a tenfold difference in hydrogen ion concentration.