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.
 
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Topperlearning Team.

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