Home
Class 12
CHEMISTRY
Ionisation constant of ammonia is 1.8xx1...

Ionisation constant of ammonia is `1.8xx10^(-5)` at `25^(@)C`. Calculate the degree of ionisation of ammonia in its `0.1(M)` aqueous solution at that temperature.

Text Solution

Verified by Experts

`NH_(3)` is a weak monobasic base. In aqueous solutions,
degree of ionisation `(alpha)` and `K_(b)=1.8xx10^(-5)`,
the degree of ionisation of `NH_(3)` in its 0.1(M) aqueous solution`=sqrt((1.8xx10^(-5))/(0.1))=0.0134=0.0134xx100%=1.34%`.
Promotional Banner

Topper's Solved these Questions

  • EQUILIBRIUM

    CHHAYA PUBLICATION|Exercise WARM UP EXERCISE|153 Videos

  • EQUILIBRIUM

    CHHAYA PUBLICATION|Exercise QUESTION ANSWER ZONE FOR BOARD EXAMINATION (very short answer type)|30 Videos

  • ENVIRONMENTAL CHEMISTRY

    CHHAYA PUBLICATION|Exercise PRACTICE SET 14(Answer the following questions)|6 Videos

  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    CHHAYA PUBLICATION|Exercise PRACTICE SET 6|10 Videos

Similar Questions

Explore conceptually related problems

At 25^(@)C , the value of ionisation constant of a weak monobasic acid, HA is 1.6xx10^(-4) . What is the degree of ionisation of HA in its 0.1(M) aqueous solution?

The ionisation constant of propanoic acid is 1.32xx10^(-5) . Calculate the degree of ionisation of the acid in its 0.05(M) solution and also its pH. What will be its degree of ionisation if the solution is 0.01(M) in HCl also?

The ionisation constant of acetic acid is 1.74xx10^(-5). Calculate the degree of dissociation of acetic acid in its 0.05 (M) solution. Calculate the concentration of acetate ion in the solution and its pH.

The ionisation constant of dimethylamine is 5.4xx10^(-4) . Calculate its degree of ionisation in its 0.02(M) solution. What percentage of dimethylamine is ionised if the solution is also 0.1 (M) in NaOH?

Derive the mathematical form of degree of ionisation of acetic acid in its dilute aqueous solution at a given temperature.

If the ionisation constant (K_a) of acetic acid at 298K si 1.8xx10^(-5) , then what will be the degree of ionisation of 0.001(M) acetic acid solution?

What is the pH of 0.001 (M) aniline solution? The ionisation constant of aniline can be taken from standard table. Calculate the degree of ionisation of aniline in the solution. Also calculate the ionisation constant of the conjugate acid of aniline.

The first ionisation constant of H_(2)S is 9.1xx10^(-8) . Calculate the concentration of HS^(-) ion in its 0.1(M) solution. How this concentration be affected if the solution is 0.1(M) in HCl also? If the second dissociation constant of H_(2)S is 1.2xx10^(-13) , calculate the concentration of S^(2-) under both conditions.

AT 25^@C acid dissociation constant of HCN is 4.9xx10^-10 M. Calculate the degree of dissociation of HCN if its conc. Are(1) 0.1 M (2) 0.01 M

The ionisation constant of nitrous acid is 4.5xx10^-4 Calculate the pH of 0.04 M sodium nitrite solution.