Chemistry, asked by gitanjali4, 1 year ago

What is mechanism of buffer solution

Answers

Answered by anu244
1
Buffer solutions are the solutions whose pH value doesn't change even after adding small amounts of acid/base. There are two types of buffer and their mechanisms are as follows: Action of base buffer: A basic buffer contains a weak base (BOH), and its salt with strong acid (BX)
Answered by Anonymous
11

\textbf{\large{Answer -}}


\textbf{Buffer Solution :}


The solution which resist any change in it's pH value by adding small amount of acid or bases are known as buffer solution.


\textbf{Types of buffer solution :}


1. Solution of single substance

2. Solution of mixture substance


\textbf{Solution of single substance :}


Solution of salt of weak acid and weak base will act as a buffer solution.


Example : CH_{3}COONH_{4}, (NH_{4})_{2}CO_{3}, (NH_{4})_{2}S


\textbf{Solution of mixture substance :}


It is of two types i.e., acidic buffer solution and basic buffer solution.


\textbf{Acidic buffer solution :}


It is a solution of weak acid and the salt of this weak acid with strong base.


Example -


1. CH_{3}COOH + CH_{3}COONa

2. HCN + NaOH

3. H_{2}S + K_{2}S

4. H_{2}CO_{3} + Na_{2}CO_{3}


\textbf{Basic buffer solution :}


It is a solution of weak base and the salt of this weak base with strong acid.


Example -


1. NH_{4}OH + NH_{4}Cl

2. Mg(OH)_{2} + MgSO_{4}

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