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6-2.Equilibrium-II (Ionic Equilibrium)
medium
$298\, K$ અને $PbCl_2$ ની દ્રાવ્યતા $2 \times 10^{-2}$ મોલ/લીટર છે તો $K_{sp}$ = ?
A
$1 \times 10^{-7}$
B
$3.2 \times 10^{-7}$
C
$1 \times 10^{-5}$
D
$3.2 \times 10^{-5}$
Solution
$PbCl_2 ⇌ Pb^{+2} + 2Cl^-$
$K_{sp} = S \times (2S)^2\,\, K_{sp} = 4S^3$
$K_{sp} = 4 \times (2 \times 10^{-2})^3 $
$K_{sp} = 4 \times 8 \times 10^{-6} \,\,K_{sp} = 3.2 \times 10^{-6}$
Standard 11
Chemistry
