Question

What is strong acid, weak acid, dilute acid and concentrated acid?

And why?

How strong acid are different from concentrated acid and how dilute acid is different from weak acid?

Answer 1

The concept strong and weak acid is totally different from that of concentrated and dilute acid

Whether an acid is strong or weak depends upon its Degree of Dissociation If degree of dissociation of an acid is more it is a strong acid

eg HCl, H2SO4, HNO3

If degree of dissociation is less then the acid is weak

eg Carbonic acid

Strong acid ionizes in water completely i.e. breaks into its ions. Whereas weak acids ionize partially.

Weather an acid is concentrated or dilute depends upon the quantity of solute in the acid solution as compared to the amount of solvent

(ie water)

If the quantity of the solute acid is more it is concentrated and if quantity of solute is less it is dilute acid That's why concentrated acid is diluted by adding water (solvent) to it

ConcH2SO4 which is a strong acid can be diluted by adding water to it but by adding water to it won't become a weak acid