Acid Strength

Definition

Acid strength refers to the ability of an acid (a substance that donates hydrogen ions) to donate its protons or hydrogen ions. The stronger the acid, the more readily it gives up its proton.

Related terms

Bronsted-Lowry Acid: An acid that can donate a proton or hydrogen ion.

pH Scale: A measure of how acidic or basic a substance is, based on its concentration of hydrogen ions.

Hydronium Ion:

The ion H3O+, consisting of a protonated water molecule and present in all aqueous acids.