Acids and bases A-level
pH
-log₁₀{H⁺}
strong base
A base that dissociates completely into ions in solution.
weak base
A base that does not dissociate completely into ions in solution.
buffer solution
A system that minimises pH changes on addition of small amounts of an acid or a base
indicator
a compound that can reversibly change color depending on conditions such as pH
Ka
acid dissociation constant
monoprotic acid
an acid that can donate only one proton (hydrogen ion) per molecule
diprotic acid
an acid that can donate two protons per molecule
strong acid
an acid that ionizes completely in aqueous solution
weak acid
an acid that ionizes only partially in dilute aqueous solution
Brønsted-Lowry base
proton acceptor
Brønsted-Lowry acid
proton donor
Kw
The ionic product of water