220.127.116.11 Brønsted–Lowry acid–base equilibria in aqueous solution (A-level only)
An acid is a proton donor.
A base is a proton acceptor.
Acid–base equilibria involve the transfer of protons.
18.104.22.168 Definition and determination of pH (A-level only)
The concentration of hydrogen ions in aqueous solution covers a very wide range.
Therefore, a logarithmic scale, the pH scale, is used as a measure of hydrogen ion concentration. pH = –log10[H+]
Students should be able to:
• convert concentration of hydrogen ions into pH and vice versa
• calculate the pH of a solution of a strong acid from its concentration.