Question

1. (a) Why do acids not show acidic behaviour in the absence of water?
(b) How is the concentration of hydronium ions (H.O+) affected when a solution of an acid is
diluted?​

Answer 1

Answer:

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1. The acidic behaviour of acid is due to the presence of hydrogen ions. The acids will not show its acidic behaviour in the absence of water, this is because acids do not dissociate to produce H+(aq) ions in the absence of water.
2. When the solution of an acid is diluted then its strength decreases as there is decrease in the concentration of hydronium (H3O+)ions. Diluting with water of an acid causes lowering of concentration of hydronium ion because of adding H2O but there are no excess H+ to make it (H3O+).

Answer 2

Que 1 )

( a ) Why do acids not show acidic behaviour in the absence of water ?

Ans ) The acidic behaviour of acid is due to the presence of hydrogen ions. The acids will not show its acidic behaviour in the absence of water, this is because acids do not dissociate to produce H+(aq) ions in the absence of water....

( b ) How is the concentration of hydronium ions (H.O+) affected when a solution of an acid is

diluted ?

Ans ) The concentration will go down proportionally on increase in volume. ... So, now we can say that the concentration of hydronium ions decreases when an acid is diluted because on adding water, the hydronium ion of acid and hydroxyl ions of water react to form water molecules and the concentration of hydronium ion decreases.....

Hope it helps uh!!