Question

Define acids . differentiate between strong acids and weak acids

Answer 1

Actually Acids do not have a particular definition. It has been defined differently by different scientist.

According to Arhenius Concept: Acids are the substances which gives H+ ions in their aqueous solution

According to Lowry and Bronsted Concept: Acids are proton doners

According to Lewis concept: Acids are electron acceptors

In common words Acids turn blue litmus red, they react with bases to form salt and water and they are sour in taste and mostly corrosive in nature

The difference between strong acid and weak acid is given

Strong Acid:-

Strong acids will dissociate completely to produce H+ ions.

pH values will be around 0 to 1.

Most of the inorganic acids are strong acids in nature.

Ex: H2SO4, HNO3, HCl…etc



Weak Acid:-
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Weak acids will dissociate partially to produce H+ ions.

pH values will be around 5 to 7.

All organic acids are weak acids.

Ex: CH3COOH, HNO2, H2SO3…etc