Arrhenius Acid and Base

-The Arrhenius definition of acids and bases is one of the oldest. It was formulated by the Swedish scientist, Svante Arrhenius. An Arrhenius acid is a substance that when added to water increases the concentration of H+ ions present. The chemical formulas of Arrhenius acids are written with the acidic hydrogen’s first. Ionization is the process of a polar molecular compound dissolving in water and forming positive or negative ions.

 

-An Arrhenius base is a substance that when added to water increases the concentration of OH1- ions present. Dissociation, the process of an ionic compound dissolving in water and separating into postive or negative ions. HCl is an example of an Arrhenius acid and NaOH is an example of an Arrhenius base.

 

 

 

 

 

 

 

 

 

 

 

 

-The H+ ion produced by an Arrhenius acid is always associated with a water molecule to form the hydronium ion, H3O+(aq). Arrhenius acids are frequently referred to as proton donors, hydrogen ion donors, or hydronium ion donors, depending on whether we are trying to emphasize the species liberated by the acid (proton or hydrogen ion) or the species present in solution (hydronium ion). To represent the transfer of the H+ ion to water to form the hydronium ion, we must include H2O in the chemical equation for acid ionization.

 

 

 

 

 

 

 

 

 

 

Written by: Abel Christopher Munoz

Revised.