how can we determine d strength of an acid

Asked by shuchi.saumya | 23rd Jul, 2010, 12:00: AM

Expert Answer:

For an aqueous solution of acid or base product of H+ ion concenteration and (OH)-ion concenteration is alwaya constant and equals to 10-14 which is called ionic product of water (Kw).
strenght of an acid could be determined by the negative logarithm of hydrogen ion concenteration ie. pH of the solution.
pH= -log[H+]
ex. if the solution has H+ ion concenteration = 0.2 M ie.10-2 moles/litre, its pH is 2.
Asubstance is considered acidic if its ph lies between 0 to 6.

Answered by  | 24th Jul, 2010, 06:44: PM

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