Werner's theory

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Question

One litre of 1M solution of ${CoCl}_{3} . 4 {NH}_{3}$ require ‘V’ litres of 2M ${AgNO}_{3}$ solution to precipitate all the chloride ions. Value of ‘V’ is

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Solution

$Modern formula of {CoCl}_{3} . 4 {NH}_{3} is [Co {({NH}_{3})}_{4} {Cl}_{2}] Cl; [Co {({NH}_{3})}_{4} {Cl}_{2}] Cl ⇌ {[Co {({NH}_{3})}_{4} {Cl}_{2}]}^{+} + {Cl}^{-}; Valency of the complex is one; Valency of silver nitrate is one; V_{1} N_{1} = V_{2} N_{2}; 1 (1 M) = V (2 M); V_{{AgNO}_{3}} = 0.5 litre;$

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Werner's theory

Unlock the full solution & master the concept.

One litre of 1M solution of CoCl3.4NH3 require ‘V’ litres of 2M AgNO3 solution to precipitate all the chloride ions. Value of ‘V’ is

Modern formula of CoCl3.4NH3 is CoNH34Cl2Cl; CoNH34Cl2Cl ⇌CoNH34Cl2++Cl-; Valency of the complex is one; Valency of silver nitrate is one; V1N1=V2N2; 1 1M = V 2M; VAgNO3= 0.5 litre;

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One litre of 1M solution of ${CoCl}_{3} . 4 {NH}_{3}$ require ‘V’ litres of 2M ${AgNO}_{3}$ solution to precipitate all the chloride ions. Value of ‘V’ is