Home
Class 11
CHEMISTRY
The dissociation constant of a substitud...

The dissociation constant of a substitude benzoic acid at `25^(@)C` is `1.0xx10^(-4)`. The pH of a `0.01M` solution of its sodium salt is

Text Solution

Verified by Experts

The correct Answer is:
8
Given, `K_(a)= 1.0xx10^(-4)`
`pK_(a)= -log K_(a)= -log(1.0xx10^(-4))=4`
and `c = 0.01M`
Now, `pH= 7+(1)/(2)(pK_(a)+logc) at 25^(@)C`
`pH= 7+(1)/(2)[4+log(0.01)]`
`=7+1=8`
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • IONIC EQUILIBRIUM

    P BAHADUR|Exercise Exercise7|33 Videos

  • IONIC EQUILIBRIUM

    P BAHADUR|Exercise Exercise|85 Videos

  • IONIC EQUILIBRIUM

    P BAHADUR|Exercise Exercise4|32 Videos

  • GASEOUS STATE

    P BAHADUR|Exercise Exercise -9|1 Videos

  • MOLE AND EQUIVALENT CONCEPT

    P BAHADUR|Exercise Exercise 9 Advanced numerical problems|61 Videos

Similar Questions

Explore conceptually related problems

The dissociation constant of a substituted benzoic acid at 25^(@)C is 1.0 xx 10^(-4) . The pH of a 0.01 M solution of its sodium salt is

The dissociation constant of a substituted benzoic acid at 25^(@)C is 1.0 xx 10^(-4) . The pH of a 0.01 M solution of its sodium salt is

Knowledge Check

  • The dissociation constant of a weak monobasic acid K_(a) is 1xx 10^(-5) . The pH of 0.1 M of that acid would be

    A
    5
    B
    1
    C
    2
    D
    3

  • The dissociation constant of an acid HA is 1 xx 10^(-5). The pH of 0.1 molar solution of the acid will be approximately

    A
    3
    B
    5
    C
    1
    D
    6

    • Similar Questions

    Explore conceptually related problems

    The dissociation constant of a substituted benzoic acid at 25^(@)C is 1.0 xx 10^(-4) . The pH of a 0.01 M solution of its sodium salt is

    The dissociation constant of a substituted benzoic acid at 25^(@)C is 1.0xx10^(-4) . The pH of a 0.01 M solution of its sodium salt is

    The dissociation constant of a substituted benzoic acid at 25^(@)C is 1.0xx10^(-4) . The pH of 0.01M solution of its sodium salt is

    The dissociation constant of a substituted benzoic acid at 25^(@)C is 1.0 xx 10^(-4) . The pH of 0.01M solution of its salt is :

    The dissociation constant of a substitued benzoic acid at 25^(@)C is 1.0 xx 10^(-1) . Find the pH of a 0.01M solution of its sodium salt.

    The dissociation constant of a substituted benzoic acid at 25^@C is 1.0 xx 10^(-4) , Calculate pH of a 0.01 M solution of its sodium salt.

    Home
    Profile