TERMIUM Plus^®

Fiche 1,  Justifications,  Anglais

Record number: 1, Textual support number: 1 CONT

A common measure of acidity is pH, which is defined as the negative logarithm of the hydrogen-ion concentration. The pH scale ranges from 0 to 14, with a value of 7 representing a solution that is neutral, values below 7 indicating greater acidity and values above 7 indicating greater alkalinity.  2, fiche 1, Anglais, - pH%20scale

Record number: 1, Textual support number: 2 CONT

... the pH scale is a logarithmic scale; a substance with a pH of 4 is more than twice as acid as a substance with a pH of 5. Similarly, a substance with a pH of 9 is much more than twice as alkaline as a substance with a pH of 8.  3, fiche 1, Anglais, - pH%20scale

Fiche 1,  Justifications,  Français

Record number: 1, Textual support number: 1 CONT

L'échelle des pH s'étend de 0 (acidité forte) à 14 (base forte), une solution de pH = 7 étant neutre.  3, fiche 1, Français, - %C3%A9chelle%20des%20pH

Fiche 1,  Justifications,  Espagnol