Chemistry, asked by gaganqwerty54, 9 months ago

Explain the role of water in dissociation of an acid


Answers

Answered by SᴘᴀʀᴋʟɪɴɢCᴀɴᴅʏ
4

An Arrhenius acid is therefore any substance that ionizes when it dissolves in water to give the H+, or hydrogen, ion.

An Arrhenius base is any substance that gives the OH-, or hydroxide, ion when it dissolves in water.

Arrhenius acids include compounds such as HCl, HCN, and H2SO4 that ionize in water to give the H+ ion. Arrhenius bases include ionic compounds that contain the OH- ion, such as NaOH, KOH, and Ca(OH)2.

This theory explains why acids have similar properties: The characteristic properties of acids result from the presence of the H+ ion generated when an acid dissolves in water. It also explains why acids neutralize bases and vice versa. Acids provide the H+ ion; bases provide the OH- ion; and these ions combine to form water.

H+(aq) + OH-(aq)  H2O(l)

Answered by love020rosabella
3

Answer:

The Role of Water in the Brnsted Theory

The Brnsted theory explains water's role in acid-base reactions. Water dissociates to form ions by transferring an H+ ion from one molecule acting as an acid to another molecule acting as a base.

Acids and bases dissolve in water and, because they increase the concentration of one of the products of water self-ionization, either protons or hydroxide ions, they suppress water dissociation. For any acid, Ka is the equilibrium constant for the acid dissociation reaction in water.

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