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6-2.Equilibrium-II (Ionic Equilibrium)
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જો બેઈઝ $M(OH)_3$ ને દ્રાવ્યતા ગુણાકાર $2.7\times 10^{-11}$ હોય તો $OH^{-1}$ ની સાંદ્રતા શોધો.

A

$3 \times10^{-4}$

B

$3 \times10^{-3}$

C

$10^{-3}$

D

$10^{-11}$

Solution

$M(OH_3) \rightleftharpoons M^{+3 }+ 30H^{-1}$

$K_{sp}$  $=$ $[M^{+3}] [OH^-]^3 $=$ s(3s)^3$

 $⇒$ $27s^4 $= $27 \times10^{-12}$

$s = 10^{-3} [OH^{-1}] = 3s = 3 \times 10^{-3}$

Standard 11
Chemistry

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