Neutralization reaction of Acids and Bases the Arrhenius theory

 

Acids are a source of hydrogen ions, H+, like HCl(aq) Bases are a source of hydroxide ions, OH-, like KOH(aq)

Acids are a source of hydrogen ions, H+, like HCl(aq). Bases are a source of hydroxide ions, OH-, like KOH(aq). The reaction between acids and bases is called neutralization. The reaction of an Arrhenius acid with an Arrhenius base always forms water and a "salt" of cation from the base and the anion from the acid like the reacation shown here.

hydrochloric acid

potassium hydroxide

--->

water

potassium chloride

HCl(aq)

+ KOH(aq)

--->

H2O(l)

+ KCl(aq)

HCl(aq) + KOH(aq) ---> H2O(l) + KCl(aq)

Another example of neutralization is shown here. Again water is a product and the salt is potassium nitrate, KNO3.

Nitric acid

potassium hydroxide

--->

water

potassium nitrate

HNO3(aq)

+ KOH(aq)

--->

H2O(l)

+ KNO3(aq)

Exercise:

Write the reaction expected when the following pairs of compounds are mixed. Click to see the answer

hydrobromic acid

aluminum hydroxide

--->

?????

??????

HBr (aq)

+ Al(OH)3(aq)

--->

??????

+????????