Home
Class 11
CHEMISTRY
A 0.2 M solution of formic acid is 3.2% ...

A 0.2 M solution of formic acid is `3.2%` is ionised. The ionisation constant of the weak electrolyte is

A

`2.1 x 10^(-6)`

B

`2.1 xx 10^(-4)`

C

`9.6 xx 10^(-3)`

D

`4.8 xx 10^(-5)`

Text Solution

Verified by Experts

The correct Answer is:
B
Doubtnut Promotions Banner Mobile Dark
|

Similar Questions

Explore conceptually related problems

The pH of 0.1 m solution of cyanic acid (HCNO) is 2.34. Calculate ionization constant of the acid and also its degree of dissociation in the solution.

A 0.1 M solution of a weak acid HA is 1% dissociated. The approximate value of dissociation constant is :

Knowledge Check

  • 0.2 molar solution of formic acid is ionized to 3.2 %. Its ionisation constant is :

    A
    `9.6xx10^(-3)`
    B
    `2.05xx10^(-4)`
    C
    `1.25xx10^(-6)`
    D
    `4.8xx10^(-5)`

  • The PH of a 0.1 molar solution of the acid HQ is 3. The value of the ionization constant k_a of this acid is

    A
    `1 xx 10^(-3)`
    B
    `1 xx 10^(-5)`
    C
    `1 xx 10^(-7)`
    D
    `1 xx 10^(-1)`

  • The pH of a 0.1 molar solution of the acid HQ is 3. The value of the ionization constant, K_(a) of this acid is :

    A
    `1xx10^(-7)`
    B
    `3xx10^(-7)`
    C
    `1xx10^(-3)`
    D
    `1xx10^(-5)`

    • Similar Questions

    Explore conceptually related problems

    0.2 m aqueous solution of a weak acid (HX) is 20% dissociated. The boiling point of this solution is ( K_(b) for water = 0.52 Km^(-1) )

    Resistance of 0.2 M solution of an electrolyte is 50 Omega . The specific conductance of the solution of 0.5 M solution of same electrolyte is 1.4 Sm^(-1) and resistance of same solution of the electrolyte is 280 Omega .The molar conductivity of 0.5 M solution of the electrolyte in Sm^2 mol^(-1) is

    At what concentration of acetic acid its degree of dissociation is 4.24% . given ionisation constant of acetic acid is 1.8xx10^(-5) at 298 K

    If a 0.1 M solution of HCN is 0.01 % ionised , the K_(a) for HCN is :

    100 ml of 0.1 M solution A is mixed with 20ml of 0.2 M solution B. The final molarity of the solution is :

    Home
    Profile