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Higher the amount of acid or base used t...

Higher the amount of acid or base used to produce a definite change of pH in a buffer solutions, higher will be its buffer capacity . Buffer capacity of solution is maximum under the following conditions:
[Salt ]= [Acid ](in acid buffer ) ,[Salt ] =[Base] (in base buffer)
pH of a buffer solution lies in the range given below : pH= `pK_a +1`
In other words any buffer solutions can be used as buffer up two pH units only. depending upon the value of `pK_a or pK_b . ` A buffer is said to be efficient when pH =`pK_a or pOH =pK_b` ,
Buffer capacity is maximum when:

A

one mole of `NH_4 Cl` is added to one mole of `NH_4 OH`

B

one mole of `NH_4 OH ` is added to one mole of HCl

C

one mole of `NH_4 Cl ` is added to one mole of NaOH

D

one mole of `NaCl ` is added to one mole of NaOH

Text Solution

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The correct Answer is:
A
` [B] =[S] `
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Higher the amount of acid or base used to produce a definite change of pH in a buffer solution,higher will be its buffer capacity. Buffer capacity of solution is maximum under the following conditions: [Salt= [Acid] (in acid buffer), [Salt] = [Base] (in base buffer) pH of a buffer solution lies in the range given below: pH = pk_(a)pm1 , In other words, any buffer solution can be used as buffer up to two pH units only, depending upon the value of pK_(a) , or pK_(b), . A buffer is said to be efficient when pH_(a) =pK_(a) , or pOH= pk_(b) The bulfer capacity is equal to :

Higher the amount of acid or base used to produce a definite change of pH in a buffer solution,higher will be its buffer capacity. Buffer capacity of solution is maximum under the following conditions: [Salt= [Acid] (in acid buffer), [Salt] = [Base] (in base buffer) pH of a buffer solution lies in the range given below: pH = pk_(a)pm1 , In other words, any buffer solution can be used as buffer up to two pH units only, depending upon the value of pK_(a) , or pK_(b) ,. A buffer is said to be efficient when pH_(a) =pK_(a) , or pOH= pk_(b) Which among the following solution will be the most efficient buffer?

Explain the working of an acidic buffer solution.

On diluting a buffer solution, its pH :

Which buffer solution has maximum pH?

What are buffer solutions ? Give examples.

When 0.1 mole of an acid is added to 2 lit of a buffer solution, the P^(H) of the buffer decreases by 0.5 The buffer capacity of the solution is