$0.004\,M$ $Ca$$SO_4$ અને $ 0.002 \,H_2SO_4$ ના સમાન કદને મિશ્ર કરવાથી બનતા દ્રાવણનો $K_{sp}$ શોધો.

Question

Diffcult

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Solution

c
$CaSO_4 $ $ \rightleftharpoons $ $Ca^{+2}$ +$ SO_4^{-2}$

$Ksp \rightleftharpoons [Ca^{+2}] [SO_4^{-2}]$

$CaSO_4 \rightleftharpoons Ca^{+2}+ {SO_4}^{-2}$

$C$ $0$ $0$

$0$ $C$ $2C$

$4\times10^{-3}$ $2\times4\times 10^{-3}$

$H_2SO_4 $ $ \rightleftharpoons $ $ 2H^+ $ $+$ $ SO_4^{-2}$

$C$ $0$ $0$

$0$ $2C$ $C$

$ 2\times 2\times 10^{-3 }$ $ 2 \times10^{-3}$

$Ksp = \left[ {\frac{{4 \times {{10}^{ - 3}}}}{2}} \right]\,\left[ {\frac{{2 \times {{10}^{ - 3}}}}{2}} \right] = 2 \times {10^{ - 6}}$

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