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The rapid change of pH near the stoichio...

The rapid change of `pH` near the stoichiometric point of an acid-base titration is the basic of indicator detection. `pH` of the solution is related to the ratio of the concentration of conjugate acid `(Hin)` and base `(In^(-))` forms of the indicator by the expression

A

`"log""[Hln]"/([In^-])=pK_"In"-pH`

B

`"log""[Hln]"/([In^-])=pH-pK_"In"`

C

`"log" ([In^-])/"[Hln]"=pH-pK_"In"`

D

`"log" ([In^-])/"[Hln]"=pK_"In"-pH`

Text Solution

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The correct Answer is:
A, C
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The rapid change of pH near the stoichiometric point of an acid base titration is the basis of indicator detectio. pH of the solution is related to ratio of the concentrations of the conjugate acid (Hin) and base (In^(-)) forms of the indicator given by the expression

The rapid change of pH near the stocichiometric point of an acid-base titration is the basis of indicator detrection. pH of the solution is related to the ratio of concentration of conjugate acid (HIn) to the concentration of base (In^(-)) froms of the indicator by the expression

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