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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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