What happen to an Acid or a Base in a Water solution ??
What is exothermic and endothermic reactions??

Asked by adhakad099 | 2nd Sep, 2015, 06:57: AM

Expert Answer:

Dear adhakad099@gmail.com

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Solution of your first query,
When an acid or a base is dissolved in water, they get dissociated into ions.
For example,
When hydrochloric acid is dissolved in water, it get dissociated into ions such as  protons (H+ ions) and Cl- ions as follows:
HCl + H2O → H3O+ + Cl-
As there is an increase in the protons in the aqueous solutions, the solution is acidic in nature.
Similarly, when NaOH is dissolved in water, it get dissociated as,
NaOH + H2O → Na+ + OH- + H2O
As there is an increase in the hydroxyl ions in the solution, the solution is basic in nature.
Basic aqueous solution is called alkali.

Topperlearning Team.

Answered by Prachi Sawant | 2nd Sep, 2015, 11:26: AM