Q.

The degree of hydrolysis of a salt of weak acid and 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:

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a

25%

b

50%

c

100%

d

None of these

answer is B.

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Detailed Solution

The reaction takes place as,

HA acid +BOH base +ABsalt+H2O

h is independent of concentration of salt of weak acid and weak base.  The percentage hydrolysis of the salt in this case will be 50%.

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