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Glite Dictionary
acid hydrogen

acid hydrogen

7.0
A hydrogen atom in an acid that can leave as a positive proton
  • noun
  • Specialized
translation icon : hidrógeno ácido
  • The acid hydrogen is released as a proton during the dissociation of hydrochloric acid in water.

Examples

  • In sulfuric acid, each molecule contains two acid hydrogens that can dissociate sequentially.

  • In strong acids, the acid hydrogen readily dissociates.

  • The presence of acid hydrogen determines the strength and behavior of an acid in solution.

  • The acid hydrogen in sulfuric acid is highly reactive.

  • The acid hydrogen is released as a proton during the dissociation of hydrochloric acid in water.

  • In sulfuric acid, each molecule contains two acid hydrogens that can dissociate sequentially.

  • The presence of acid hydrogen determines the strength and behavior of an acid in solution.

Synonyms

acidic hydrogen
vsacid hydrogen
  • Specialized
6.8

A hydrogen atom that can leave an acid as a positive ion

is the same idea but states dissociation occurs during a chemical reaction

Surface Forms

acid hydrogen singular
acid hydrogens plural

Morphology

acid + hydrogen

The phrase is compositionally built from 'acid' (a substance that reacts with bases) and 'hydrogen' (the element), so a learner who knows both words can infer it refers to the hydrogen associated with an acid (i.e., the hydrogen atom in an acid molecule). Although the exact technical implication (that it can dissociate as a proton) is scientific, the basic referential meaning is transparently derivable from the constituents.

Etymology

Acid hydrogen gives a clear picture: a small hydrogen in an acid that can 'leave' the molecule as a 'proton'. That's why the term means the hydrogen that can be released and helps show how strong the acid is.