First slide

Werner's theory

Question

How much amount of AgCl is precipitated, when 1 mole of $[Co {({NH}_{3})}_{6}] {Cl}_{3}$ Complex is treated with excess AgNO₃ ?

Moderate

A

143.5 gr
B

287 gr
C

430.5 gr
D

574 gr

Solution

$[Co {({NH}_{3})}_{5} Cl] {Cl}_{2} + \underset{}{{AgNO}_{3} (excess) \to [Co {({NH}_{3})}_{5} Cl] {({NO}_{3})}_{2}} + \underset{ppt}{2 AgC} l ↓$ ,1 mole of given complex treated with excess AgNO₃ to form 2 moles of AgCl precipitate is formed, that is 2x 143.5=287 gr AgCl ppt out.

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