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6-2.Equilibrium-II (Ionic Equilibrium)
medium
The solubility product of $AgCl$ is $1.8 \times 10^{-10}$.Precipitation of $AgCl$ will occur by mixing which of the following solutions when mixed in equal volume ?
A
$10^{-8} \,M \, Ag^+$ and $10^{-8} \,M \,Cl^-\, ions$
B
$10^{-3} \,M \, Ag^+$ and $10^{-3} \,M \,Cl^-\, ions$
C
$10^{-6} \,M \, Ag^+$ and $10^{-6} \,M \,Cl^-\, ions$
D
$10^{-10} \,M \, Ag^+$ and $10^{-10} \,M \,Cl^-\, ions$
Solution
$ \text { I.P. } =\left[\mathrm{Ag}^{+}\right]\left[\mathrm{I}^{-}\right] $
$=\frac{10^{-3}}{2} \times \frac{10^{-3}}{2} $
$=0.25 \times 10^{-6} $
$=2.5 \times 10^{-7} $
$ \mathrm{IP} >\mathrm{K}_{\mathrm{SP}} \text { precipitation occur } $
Standard 11
Chemistry
