The ph of aqueous solution of sodium acetate is

Asked by admin @ in Science viewed by 320 People

Explain why?

(i) Aqueous solution of sodium acetate has pH more than 7.
(ii)Aqueous solution ofcopper sulphate has pH less than 7.
(iii)Aqueous solution ofpottasium nitrate has pH value 7.

Answered by admin @


Acid base reactions result in salts
with differing pH based on the nature of the acid or base. The explanation for
the given pH values are as follows:


 


1. Sodium acetate is formed from
sodium hydroxide, a strong base, and acetic acid, a weak acid. Hence, it will
be basic in nature, and will have a pH greater than 7.


 


2. Copper sulphate is formed from copper
hydroxide, a weak base, and sulphuric acid, a strong acid. Hence, it will be
acidic in nature and will have a pH less than 7.


 


3. Potassium nitrate is formed from potassium
hydroxide, a strong base, and nitric acid, a strong acid. Hence, it be neutral
in nature and will have a pH of 7.

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