`pK_(a)` of `NH_(4)^(+)` is 9.26. Hence, effective range for `NH_(4)OH-NH_(4)Cl` buffer is about pH:

The pH of buffer of NH_4OH + NH_4Cl - type is given by -

pK_(b) of aq. NH_(3) is 4.74 hence pH of 0.01 M NH_(3) solution is

Ionisation of NH_(4) OH is supressed by the addition of NH_(4)Cl because

When NH_(4)Cl is added to a solution of NH_(4)OH :

When NH_(4)Cl is added to a solution of NH_(4)OH ,

When NH_(4)Cl is added to a solution of NH_(4)OH :

When NH_(4)Cl is added to a solution of NH_(4)OH :

In a buffer solution, total concentration of NH_(3) and NH_(4)Cl is 0.6 (M). If the pH of the buffer be 9.0 then, find the amount of NH_(3) and NH_(4)Cl required to prepare 1L of that buffer. Given: pK_(b)(NH_(3))=4.74

1 M NH_(4)OH and 1 M HCl are mixed to make a total volume of 300 mL. If pH of the mixture is 9.26 and pK_(a)(NH_(4)^(+))=9.26 then what would be the volume ratio of NH_(4)OH and HCl