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Explain common ion effect taking place i...

Explain common ion effect taking place in `CH_(3)COOH+CH_(3)COONaandNH_(4)OH+NH_(4)Cl`.

Text Solution

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(a) `CH_(3)COOHhArrCH_(3)COO^(-)+H^(+)`
`CH_(3)COONatoCH_(3)COO^(-)+Na^(+)`
Dissociation of acetic acid can be suppressed by adding a strong electrolyte `CH_(3)COONa` containing common ion `CH_(3)COO^(-)`.
(b) `NH_(4)OHhArrNH_(4)^(+)+OH^(-)`
`NH_(4)Cl toNH_(4)^(+)+Cl^(-)`
Dissociation of `NH_(4)OH` is suppressed by adding a strong electrolyte `NH_(4)Cl` containing `NH_(4)^(+)` ion as common ion.
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