Solubility product Ksp of cupric iodate -CuIO32- is 7-4 - 10-8- In which of the following mixtures- a ppt of cupric iodate will be formed-

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Solids in Liquids

Solubility pr...

Question

Solubility product (Ksp) of cupric iodate $[C u (I O_{3})_{2}]$ is $7.4 \times 10^{- 8}$ . In which of the following mixtures, a ppt of cupric iodate will be formed?

Equal volume of

0.02 M N a I O_{3}

and

0.002 M C u (C l O_{3})_{2}

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Equal volume of

0.001 M N a I O_{3}

and

0.002 M C u (C l O_{3})_{2}

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Equal volume of

0.002 M N a I O_{3}

and

0.002 M C u (C l O_{3})_{2}

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Equal volume of

0.004 M N a I O_{3}

and

0.002 M C u (C l O_{3})_{2}

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Solution

The correct option is A Equal volume of $0.02 M N a I O_{3}$ and $0.002 M C u (C l O_{3})_{2}$
$[I O_{3}^{-}] = 0.01$
$[C u^{2 +} = 0.001$
$C u (I O_{3})_{2} C u^{2 +} + 2 I O_{3}^{-}$
$K_{i p} = [C u^{2 +}]^{1} [I O_{3}^{-}]^{2}$
$K_{i p} = (0.001) (0.01)^{2} = 10^{- 7}$
$K_{i p} > K_{s p}, ppt occur.$

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Solubility product (Ksp) of cupric iodate [Cu(IO3)2] is 7.4×10–8. In which of the following mixtures, a ppt of cupric iodate will be formed?

The correct option is A Equal volume of 0.02 M NaIO3 and 0.002 M Cu(ClO3)2[IO−3]=0.01 [Cu2+=0.001 Cu(IO3)2Cu2++2IO−3 Kip=[Cu2+]1[IO−3]2 Kip=(0.001)(0.01)2=10−7 Kip>Ksp,ppt occur.

Solubility product (Ksp) of cupric iodate $[C u (I O_{3})_{2}]$ is $7.4 \times 10^{- 8}$ . In which of the following mixtures, a ppt of cupric iodate will be formed?