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Equal volumes of 0.002 M solution of sodium iodate and cupric chlorate are mixed togather. Will it lead to precipitation of copper iodate? `("for cupric iodate" K=7.4xx10^(-8))`. |
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Answer» Concentration of `[Cu^(2+)]` before mixing `=0.002 M` Conc. of `[Cu^(2+)]` after mixing `=0.002/2=0.001 M` (since equal volume, `:.` Volume becomes double after mixing and hence conc. Is half) Similarly conc. Of `[IO_(3)^(Θ)]=0.001 M` `Q_(sp)=[Ca^(2+)][IO_(3)^(Θ)]^(2)=0.001xx(0.001)^(2)` `=10^(-3)xx(10^(-3))^(2)=10^(-9)` Since `Q_(sp)lt K_(sp)` `10^(-9) lt 7.4xx10^(-8)` `:. Cu(IO_(3))_(2)` will not precipitate. |
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