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Salt hydrolysis is an acid - base react...

Salt hydrolysis is an acid - base reaction of cation or anion or both ions of salt with water . The resultant solution after hydrolysis may be acidic , basic or neutral . The anion `X^(-)` which is weaker base than `OH^(-)` and which has its conjugate acid HX stronger than water but weaker than `H_(3)O^(+)` shows the phenomenon of hydrolysis , e.g `CH_(3)COO^(-) , NO_(2)^(-) , CN^(-)` etc.
The cation `M^(+)` which is weaker acid than `H_(3)O^(+)` and which has its conjugate base MOH stronger than water but weaker than `OH^(-)` shows the phenomenon of hydrolysis , e.g `N_(2)H_(5)^(+), C_(6)H_(5)NH^(+),NH_(4)^(+)` etc .
The degree of hydrolysis of a salt of weak acid (HA) and weak base (BOH) in its 0.1 M solution is found to be 0.1 .If the molarity of the solution is `0.05` M , the percentage hydrolysis of salt should be :

A

0.05

B

0.1

C

0.2

D

none of these

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The percentage degree of hydrolysis of a salt of weak acid (HA) and weak base (BOH) in its 0.1 M solution is found to be 10%. If the molarity of the solution is 0.05 M, the percentage hydrolysis of the salt should be :

Degree of hydrolysis for a salts of strong acid and weak base is equal to

Knowledge Check

  • The degree of hydrolysis of a salt of a weak acid and a weak base in its 0.1 M solution is found to be 50%. If the molarity of the solution is 0.2 M, the percentage hydrolysis of the salt should be

    A
    1
    B
    0.5
    C
    0.25
    D
    none of these

  • The degree of hydrolysis of salt of weak acid and weak base in its 0.1M solution is found to be 5%. If the molarity of the solution of same salt is 0.5 M, then the percentage degree of hydrolysis of the salt should be :-

    A
    0.1
    B
    0.05
    C
    `2.5%`
    D
    None of these

  • The degree fo hydrolysis for a salt of strong acid and weak base

    A
    Is independent of dilution
    B
    Increases with dilution
    C
    Increases with decrease in `K_(b)` of the base
    D
    Decreases with decrease in temperature

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    Hydrolysis constant for a salt of weak acid and weak base would be

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