Home
Class 12
CHEMISTRY
pK(a) of NH(4)^(+) is 9.26. Hence, effec...

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

A

8 .26 to 10 .26

B

4.74 to 5.74

C

3.74 to 5.74

D

8.26 to 9.26

Text Solution

Verified by Experts

The correct Answer is:
A
`pK_(a)+pK_(b)=pK_(w)`
`pOH=pK_(b)pm1`
`pH=14-pOH`
Promotional Banner

Topper's Solved these Questions

  • CHEMISTRY AT A GLANCE

    ALLEN|Exercise INORGANIC CHEMISTRY|300 Videos

  • CHEMISTRY AT A GLANCE

    ALLEN|Exercise ORGANIC CHEMISTRY|472 Videos

  • Chemical Equilibrium

    ALLEN|Exercise All Questions|30 Videos

  • ELECTROCHEMISTRY

    ALLEN|Exercise EXERCISE -05 [B]|38 Videos

Similar Questions

Explore conceptually related problems

The reagents NH_(4)Cl and NH_(3) will precipitate :

K_(b) for NH_(4)OH is 1.8 xx 10^(-5) . The [overset(Theta)OH] of 0.1 M NH_(4)OH 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 :

Calculate the number of moles of NH_(4)Cl that should be added to one litre of "1.0 M "NH_(4)OH to prepare buffer solution with pH=9[K_(b)=2xx10^(-5)," take log"2=0.3]

Hg_2Cl_2 + NH_4OH to

The pK_(a) of CH_(3)COOH and pK_(a) of nH_(4)OH is 4.76 and 4.75 , respectively. Calculate the hydrolysis constant of ammonium acetate (CH_(3)COONH_(4)) at 298K and also the drgree of hydrolysis and pH of its (a) 0.01M and (b) 0.04M solutions.

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

At 18^(@)C , the conductivities at infinite dilution of NH_(4)Cl, NaOH and NaCl are 129.8, 217.4 and 108.9 mho respectively. If the equivalent conductivity of N/100 solution of NH_(4)OH is 9.93 mho, calculate the degree of dissociation of NH_(4)OH at this dilution.

How much ml of 0.3 M NH_(4)OH should be mixed with 30mL of 0.2M solution of NH_(4)Cl to given buffer solution of pH 8.65? (pKb =4.74)