$AgCl$ ની દ્રાવ્યતા $4 \times 10^{-6}s $ તો તેમનો $K_{sp}$ શોધો. $2 \times 10^{-3}\, M \,CaCl_2$ ની હાજરીમાં નવી દ્રાવ્યતા શોધો.

Question

Medium

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Solution

d
$AgCl ⇌ Ag^+ + Cl^-$

$1$ $s$ $s$

$CaCl_2 ⇌ Ca^{+2}+ 2Cl^-$

$C $ $0$ $0$

$0$ $C$ $2C$

$AgCl ⇌ Ag^+ + Cl^-$

$1$ $ s' $ $s' + 2C$

$s^2 $= અવગણતા $K_{sp} = s'\, 2C$

$K_{sp} = s_2 = (4 ´\times 10^{-6}) = 16 \times 10^{-12}$ $ K_{sp} = s'2\,C$

$s' = \frac{{16 \times {{10}^{ - 12}}}}{{2 \times 2 \times {{10}^{ - 3}}}}\,\,\,\,\,\,\,\,s' = 4 \times {10^{ - 9}}$

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