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The ionisation constant of ammonium hydr...

The ionisation constant of ammonium hydroxide is `1.77xx10^(-5)` at 298 K. Hydrolysis constant of ammonium chloride is :

A

`6.5xx10^(-12)`

B

`5.65xx10^(-13)`

C

`5.65xx10^(-12)`

D

`5.65xx10^(-10)`

Text Solution

Verified by Experts

The correct Answer is:
D
`K_(h)=(K_(w))/(K_(b))=(10^(-14))/(1.77xx10^(-5))=5.6xx10^(-10)`
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Knowledge Check

  • The ionisation constant of NH_4OH in water is 1.77xx10^(-5) at 298 K Hydrolysis constant of NH_4Cl is

    A
    `5.65xx10^(-12)`
    B
    `5.65xx10^(-10)`
    C
    `6.5xx10^(-12)`
    D
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  • The dissociation constant of the acetic acid is 1.8xx10^(-4) and that of ammonium hydroxide is also 1.8xx10^(-4) at 298 K . An aqueous solution of ammonium acetate is

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    acidic
    B
    alkaline
    C
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    D
    neutral

  • The ionisation constant for acetic acid is 1.8xx10^(-5) . At what concentration will it be dissociated to 2% ?

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    B
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