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6-2.Equilibrium-II (Ionic Equilibrium)
medium
$Ca$$Cl_2$ ની દ્રાવ્યતા $1.11 \times 10^{-8}$ ગ્રામ/$100\, ml$ તો જ્યારે $Ca$$Cl_2$ નો અણુભાર $111$ હોય તો $K_{sp}$ શોધો.
A
$4 \times 10^{-17}$
B
$4 \times 10^{-27}$
C
$5 \times 10^{-11}$
D
$6 \times 10^{-17}$
Solution
$s$ of $Ca$$Cl_2$ $=$ $1.11 \times 10^{-8}$ ગ્રામ/$100\, ml$
$S = \frac{{1.11 \times {{10}^{ – 8}} \times 1000}}{{111 \times 100}}mole/litre$
$ = {10^{ – 8}} \times {10^{ – 1}} = {10^{ – 9}}$
$K_{sp} = 4s^3 = 4 \times (10^{-9})^3 = 4 \times 10^{-27}$
Standard 11
Chemistry
