Why are strong acids genrally used as standard solutions in acid-base ...
Strong acid can be used to titrate both strong base and weak base .
So, the correct option is (B)...
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Why are strong acids genrally used as standard solutions in acid-base ...
Reasons why strong acids are generally used as standard solutions in acid-base titrations:
Ability to titrate both strong and weak bases:
Strong acids, such as hydrochloric acid (HCl) or sulfuric acid (H2SO4), are capable of fully dissociating in solution to release H+ ions. This property allows them to effectively neutralize both strong and weak bases during a titration process. As a result, strong acids are versatile and can be used to determine the concentration of a wide range of bases.
Complete dissociation:
Strong acids completely dissociate in water to produce H+ ions, resulting in a high concentration of H+ ions in the solution. This high concentration of H+ ions ensures a rapid and complete reaction with the base being titrated, leading to a clear endpoint in the titration process.
Stability of solutions:
Strong acids are generally more stable in solution compared to weak acids. This stability is crucial in maintaining the accuracy and consistency of the standard solution used in acid-base titrations. Strong acids are less prone to decomposition or contamination, ensuring reliable results in the titration process.
Prevention of hydrolysis:
The salts formed from the reaction of strong acids with bases do not undergo hydrolysis. This means that the concentration of the standard solution remains constant throughout the titration process, leading to more accurate and precise results.
In conclusion, strong acids are preferred as standard solutions in acid-base titrations due to their ability to titrate both strong and weak bases, complete dissociation in solution, stability, and prevention of hydrolysis of salts formed during the titration process.
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