TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

strong acid [1 record]

Record 1 2003-11-25

English

Subject field(s)
  • Chemistry
  • Electrolysis (Electrokinetics)
  • Electrochemistry
  • Air Pollution
DEF

An acid with a high degree of dissociation in solution, for example, mineral acids, such as hydrochloric acid, HC1, sulfuric acid, H2SO4, or nitric acid, HNO3.

CONT

The ionisation of an acid in water can be written as HA = H+ - A-. Qualitatively, an acid is strong if this reaction goes extensively toward the ionic products and weak if the ionisation is only slight .... [The] dissociation constant is a large number for a strong acid and a small number for a weak acid.

French

Domaine(s)
  • Chimie
  • Électrolyse (Électrocinétique)
  • Électrochimie
  • Pollution de l'air
DEF

Acide complètement dissocié en ions [...]

CONT

Qualitativement, un acide est d'autant plus fort que cette réaction [ionisation] se déplace vers les ions, et, inversement, d'autant plus faible que l'ionisation est plus petite. Quantitativement [...], à 25°C dans l'eau, la valeur Ka est de 1,754 x 10-5 pour l'acide acétique (acide faible), tandis qu'elle est de 1,6 x 10-1 pour l'acide picrique (acide assez fort).

Spanish

Campo(s) temático(s)
  • Química
  • Electrólisis (Electrocinética)
  • Electroquímica
  • Contaminación del aire
DEF

Acido que presenta un elevado grado de disociación cuando se encuentra en disolución.

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