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Salt of Weak Acid and Weak Base Video Lecture - NEET

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FAQs on Salt of Weak Acid and Weak Base Video Lecture - NEET

1. What is a salt of a weak acid and weak base?
Ans. A salt of a weak acid and weak base is a compound formed when a weak acid reacts with a weak base, resulting in the transfer of a proton (H+) from the acid to the base. These salts can be neutral, acidic, or basic depending on the relative strengths of the acid and base involved in the reaction.
2. How do you determine if a salt of a weak acid and weak base is neutral, acidic, or basic?
Ans. To determine the nature of a salt of a weak acid and weak base, you need to consider the relative strengths of the acid and base involved. If the acid is stronger than the base, the salt will be acidic. If the base is stronger than the acid, the salt will be basic. If the acid and base have similar strengths, the salt will be neutral.
3. Can you provide an example of a salt of a weak acid and weak base?
Ans. An example of a salt of a weak acid and weak base is ammonium acetate (NH4CH3COO). In this compound, ammonium ion (NH4+) acts as a weak acid, while acetate ion (CH3COO-) acts as a weak base. Ammonium acetate is a neutral salt.
4. How does the pH of a solution of a salt of a weak acid and weak base compare to the pH of its constituent weak acid and weak base?
Ans. The pH of a solution of a salt of a weak acid and weak base can be different from the pH of its constituent weak acid and weak base. If the salt is acidic, the pH of the solution will be lower than that of the weak base but higher than that of the weak acid. If the salt is basic, the pH of the solution will be higher than that of the weak acid but lower than that of the weak base. If the salt is neutral, the pH of the solution will be close to 7.
5. How does the concept of a salt of a weak acid and weak base relate to acid-base titrations?
Ans. The concept of a salt of a weak acid and weak base is closely related to acid-base titrations. In acid-base titrations, a strong acid reacts with a strong base to form a neutral salt. However, if a weak acid or weak base is used in the titration, the resulting salt can be acidic, basic, or neutral, depending on the relative strengths of the acid and base. Understanding the nature of salts formed in titrations is crucial in determining the pH and endpoint of the titration.
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