Chemistry

External Revision

Lowry- Bronsted

A chemistry concept from 1923 that defines acids as proton donors and bases as proton acceptors

Weak Acid

An acid that only partially breaks apart (dissociates) into hydrogen ions when dissolved in water (Does not ionise extensively with H2O to produce H3O+ ions)

Weak Acid Characteristics

Partial Ionization

Reversible Reaction

Higher pH

Common Examples

NH3

IS A WEAK BASE

Strong Bases

KOH

NaOH

Acid to Conjugate Base

An acid loses one H+ ion. What is left behind can now accept a proton back in the reverse reaction.

Base to Conjugate Acid

A base gains one H+ ion. The new particle can now donate that proton in the reverse reaction.

Dissociation reaction

A chemical or physical process in which a single compound breaks apart into two or more smaller components, such as ions, atoms, or radicals

How to calculate pH from pOH

pH+pOH=14

Monoprotic

An substance that can donate 1 proton per molecule

What is Ka mean?

Ka is the acid dissociation constant. It measures how easily a weak acid will give away a hydrogen ion to water. The greater the stronger the acid.